Open source high-end image-editing software is an unlikely concept when you think about it. For one thing, anyone who really needs an industrial strength image editing application for professional purposes can probably afford and will more often than not have the undisputed king-of-the-hill in bitmap graphics software, Adobe’s Photoshop CS, and most users – professional or amateur – will for that matter never test the limits of even Adobe’s much more affordable Photoshop Elements.

1. Image Editor For Mac Os 10.13
2. Picture Editor Mac Os
3. Free Image Editing Tool

Image Editor For Mac Os 10.13

Alternatives to Photoshop CS

Pinta is one of the best free photo editors for Mac OS X when it comes to pixel-based image editing. What struck to us as perhaps the most interesting aspect of Pinta was that it is developed on the lines of Windows photo editor, Paint.NET. Thanks to Pinta, you can make use of all the basic drawing tools common in a photo editor. PhotoPad Free Photo Editing Software for Mac OS X. Retouch photos quickly and easily and edit and apply effects to photos and other images. Crop, rotate, resize and add effects like sepia tones.

However, Photoshop CS is astronomically expensive at its list price of $649 (Elements 6.0 for Mac is more than a bit of a bargain at just $89.95). Then there’s Pixelmator, an aspirant Photoshop (at least Photoshop Elements) challenger that has a ton of power, a super attractive interface, and sells for an even more friendly $59.95.

And if you’re on a tight budget and really need advanced, full-featured image-editing capability, there is a robust and powerful freeware image editor alternative to Photoshop with the cumbersome moniker of GNU Image Manipulation Program (the GIMP, for short), an advanced open source bitmap imaging program available free for the downloading. Like Photoshop, the GIMP can be used to correct and retouch photographs, compose multiple images, and create artwork from scratch.

The GIMP: Freeware

The GIMP Is the image-editing standard for the Unix world, and because Mac OS X is Unix-based, you can run it on a Mac as well, but there is a major caveat, namely that the GIMP does not run in OS X’s Quartz/Aqua user interface layer, but rather in X Windows under X11, a program that enables X Windows applications to run under OS X.

X11 is an option that can be specified during an OS X install, and the a standalone X11 installer is also downloadable for free at:

The GIMP is also a free download, but a mighty big one – about 120 MB – and you can also download the GIMP HTML manual at:

X11 is addressed through a Unix command line, although you can configure the GIMP to be launchable without command line intercession after the initial setup, but that’s still a lot of hassle.

The GIMP Is the image-editing standard for the Unix world, and because Mac OS X is Unix-based, you can run it on a Mac as well, but there is a major caveat, namely that the GIMP does not run in OS X’s Quartz/Aqua user interface layer, but rather in X Windows under X11, a program that enables X Windows applications to run under OS X. Adobe Photoshop Elements. Where you can use it: Mac and Windows Why we love it: While not truly a free photo editor, Photoshop Elements does have a free trial, and it’s far and away among the best photo editing software for Mac and Windows.The suite of automated editing tools — including for exposure, color balance, and reducing the effects of camera shake — make short work of the.

The GIMP’s graphical user interface is more Spartan (and Windows-ish) than OS X Aqua, and there are no Mac OS X menu bars. Rather, the program depends heavily on contextual menus. To print from the GIMP, you will need Gimp-Print and ESP Ghostscript software installed.

There is also a hacked version of the GIMP by Scott Moschella called GimpShop, in which Scott has renamed and reorganized GIMP’s tools, options, windows, and menus to closely resemble Adobe Photoshop’s menu structure and naming conventions. Many of the menu options and even whole menus were recreated to faithfully reproduce a Photoshop-like experience.

Here are the Photoshop and GimpShop Image menus side by side:

And the respective Tools Palettes.

It’s an improvement, and if you’re a Mac user, GimpShop is probably the most comfortable way to go, especially if you’re familiar with Photoshop. However, you’re still going to have to install X11, etc. GimpShop is supported by Mac OS X 10.3 and up.

For more information and/or to download GimpShop, visit http://www.plasticbugs.com/?page_id=294

The GIMP is by all accounts an able and deep-featured image editor, and the price is certainly right, but if its user-demands sound too geeky for your taste (they are for mine), it is still possible to get some of the GIMP’s power in a much more user-friendly wrapper in the form of an excellent freeware program called Seashore.

Seashore

Seashore is an interesting and capable Open Source bitmap graphics program in Cocoa for OS X by Mark Pazolli that for many users could be a viable free image editing application.

From my personal perspective, I’m a big fan of the venerable Color It! bitmap image editing program, which dates back to the early 90s and which I find fast, slick, and pleasant to use. Color It! is still available to consumers in it’s last Classic iteration, version 4.3, but recently has been released in a $59.95 OS X-native (Carbon) version (4.5). It looks and works pretty much like Color It! always has, and I still love it, although for the same price you really want to give totally contemporary Pixelmator a look.

One of my very favorite things about Color It! is that it starts up almost instantly, and I’m happy to report that Seashore, while not quite as quick to get up and running as Color It!, is no slouch in launching either, as opposed to Photoshop Elements 6.0, which I love dearly, but which takes forever to start. Pixelmator is somewhere in between.

I’ve been playing with Seashore off and on for a couple of years now, and I like it, but it’s no Photoshop – or even a Photoshop Elements or Color It. Most notably, although Seashore has a nice selection of basic painting tools and layers support, there are no automated photo image cleanup and optimization and enhancement tools. Even the (very cool and exceedingly useful) freeware image utility ToyViewer is more capable in terms of button-click image correction, although Seashore has basic tools to correct things like brightness, contrast, color hues, saturation, and values, and so forth.

Like MacPaint for OS X

Seashore arguably is what the wonderful old MacPaint program that shipped with the original Macs back in the 80s might be like updated for the OS X era. The Seashore interface is strongly reminiscent of MacPaint’s attractive, clean, quick, and user-friendly look and feel.

However, Seashore is a more powerful and capable program than MacPaint ever evolved to being, featuring gradients, textures, clone and smudge tools, and anti-aliasing for both text and brush strokes. It supports multiple layers and alpha channel editing. It is based around the GIMP’s technology and uses the same native file format.

Seashore’s features include:

• Full support for the GIMP’s native XCF file format
• Read and write support for the TIFF, PNG, JPEG and JP2000 file formats
• Read-only support for the BMP, PICT, PDF, XBM and GIF file formats
• Layers with over 20 merging effects
• Individual primary and alpha channel editing
• Thorough transparency effects including semitransparent gradients
• Arbitrary selection regions
• Anti-aliased brush strokes
• 6 basic gradient effects with 16 variations
• Tablet support
• ColorSync support (including embedded profiles in TIFFs and CMYK previewing)
• Plugin filters

Seashore is sleek-looking and a lot better-documented than many of today’s commercial software programs, with a thorough and detailed user’s manual in PDF format. It also integrates tightly with the Mac operating system and is thoroughly object-oriented. It is intended serve the basic image editing needs of most computer users, rather than to provide a replacement for Photoshop, which is more the GIMP’s (or GimpShop’s) role. However, parts of the GIMP are present in Seashore in everything from the code that drives the brush and gradient tools to the brush shapes and textures themselves.

Using Seashore

You can create a new image from scratch or from the pasteboard (previously known as the clipboard) by selecting “New from Pasteboard…” in the “File” menu.

Seashore works with two color modes – full color and grayscale. Images can be converted between the color modes using the “Mode” submenu of the “Image” menu.

Images can have an alpha channel that specifies what parts of the image are transparent. Seashore creates all new images with an opaque background – creating a new layer and then deleting the opaque background layer allows images with transparency. When saving, Seashore will automatically include or exclude the alpha channel of an image based upon its utility.

Seashore, like Photoshop, also supports layers, which are like images (or slides) piled one on top of another to form a grand image. Apart from drawing, layers can be manipulated in a range of ways, some of which involve using the layer buttons. All layers in Seashore have their own boundaries. You can reveal a layer’s boundaries using the “Show Boundaries” menu item in the “Window” menu and you can adjust a layer’s boundaries using the “Boundaries…” menu item in the “Layer” menu.

Each layer in Seashore has either two or four channels. In the case of a grayscale image, these are the grey and alpha channels, and in the case of a color image, they are red, green, blue, and alpha channels. Seashore typically works on all channels at once. For example, dragging the paintbrush across a layer adjusts both the layer’s primary and alpha channel together.

Seashore also allows you to edit the primary or alpha channels individually using the radio buttons under the “Channels” tab in the layers and channels panel.

Seashore’s Tools

The 14 tools available in Seashore can be accessed through the toolbox. You can reveal a tool’s options by double-clicking on its button in the toolbox. A number of tools also support textures, including the pencil, the paintbrush and the paintbucket. A number of tools also rely upon a brush shape to work, including the paintbrush, the eraser and the smudge tool.

Selections can be made using the selection tools, and also by using various operations in the “Edit” menu. Selections can be either anchored or floating. The selection tool can select using three possible shapes: a rectangle, an ellipse, and a rounded-rectangle. The ellipse and rounded-rectangle are anti-aliased, so when they are filled their edges appear smooth to the user.

The Lasso tool allows you to select an arbitrary shape. To do so, simply click at the point where you want the shape to begin, trace out the shape with the mouse button down, and release once complete.

The Color Selection tool selects all pixels on a single layer that surround a given pixel and are within a given tolerance range. This allows the user to select all nearby pixels of similar color. To use the tool simply click on the desired base pixel.

The Position tool allows you to adjust the position of a layer on the canvas; it also allows you to scale layers and floating selections – and to rotate floating selections.

The Zoom tool allows you to zoom in on any part of the canvas. To do this, simply point-and-click on the part of the canvas you wish to zoom in on. You can also zoom out by holding down the option key while you click.

The Pencil allows you to draw squares on the current layer. The squares can range in size from 1 to 21 pixels. The pencil deliberately does not use anti-aliasing, as it is intended for users who wish to edit a handful of pixels in a very precise manner.

The Paintbrush allows you to draw various brush strokes on the current layer. By default, Seashore comes with a range of brush shapes and, using Brushed, users can add their own. The Paintbrush uses anti-aliasing so as to create smooth flowing brush strokes.

The Paintbucket allows you to flood an area of similar color with a single color or texture. To determine what area of the layer to flood, the paint bucket relies on a tolerance range that works the same way as the color selection tool.

The Text tool allows you to place a line of text anywhere on the current layer. To place the text, simply click where you want the baseline of the text to go. Then type the text in the following dialog that you want written and press the “OK” button.

The Eraser allows you to erase pixels from the current layer. In the case of a layer with its alpha channel disabled, this means setting pixels to the background color.

The Color Sampling tool allows you to set the foreground color to that of a pixel or a group of pixels on the canvas. To achieve this, simply click on the position of the pixel or pixel group that you want to use for the foreground color.

The Gradient tool allows you to create a gradual shift from the foreground color to the background color. The area affected by the tool is constrained to the selected area of the active layer – or the whole layer if no area is selected.

The Smudge tool allows you to smudge part of the current layer using the current brush shape. To smudge part of the layer, simply click the point where you want the smudge to begin and drag to the point where you want the smudge to end.

The Crop tool allows you to adjust the boundaries of an image so that they match a particular rectangle. This rectangle is formed by a click-and-drag operation similar to what you would use to select items in the Finder. Once you have selected the desired rectangle, press the “Crop” button (from the tool’s options box) to finalize the change.

Seashore’s Effects

• Blur (Blur) – Blurs the image by mixing colors from surrounding pixels. This is repeated a user-specified number of times.
• Gaussian Blur (Blur) – Blurs the image using a Gaussian blur. This is faster than a standard blur applied multiple times and produces a similar result.
• Brightness and Contrast (Color) – Adjusts the brightness and contrast of the image according to user input.
• Grayscale (Color) – Turns part of a color image to grayscale using Apple’s ColorSync. Not available for grayscale images.
• Invert (Color) – Inverts the primary channels of the image.
• Posterize (Color) – Reduces the number of colors per channel to a user-specified amount.
• Threshold (Color) – Makes the image black and white. The user-specified region of the histogram becomes white.
• Sharpen (Enhance) – Sharpens the image according to a user-specified value.

Seashore and ColorSync

Seashore uses Apple’s ColorSync technology to allow you to transfer images between devices while ensuring that the colors appear similar.

When loading images, Seashore is aware of embedded ICC profiles in all TIFF and JPEG files. When saving images, Seashore embeds the main display’s profile in all TIFF files and in certain JPEG files, depending upon the selected options. Currently, Seashore does not embed ICC profiles in JPEG 2000, PNG, or XCF files.

To create a JPEG with an embedded profile, select “Export…” from the “File” menu then in the following save dialog press the “Options” button in the accessory view. A dialog should appear giving you the option to target the Web or print. If you elect to target print, the JPEG you save will be embedded with the ICC profile of your display. Conversely if you elect to target the Web, the JPEG you save will not be embedded with an ICC profile.

SVG and JPEG 2000 Support

The Scalable Vector Graphics (SVG) format is an image format that uses shapes as opposed pixels to describe images. SVG is fast emerging as an important image format industry, and there are already a number of SVG collections available online. Seashore supports the SVG format through a Java add-on based on the Apache Software Foundation’s Batik project. The add-on requires Java 1.4 or later to be installed on your computer. You can download it from http://seashore.sourceforge.net/The_Seashore_Project/About.html

The JPEG 2000 format is an image format that supersedes JPEG. Unlike its predecessor, JPEG 2000 supports alpha channels and lossless compression, as well as featuring better results at low compression values. As of Mac OS X 10.4, Seashore supports JPEG 2000 without the need for additional add-ons. Support for JPEG 2000 is still limited in many browsers, so use for this format is limited. JPEG 2000 is not supported on systems running Mac OS X 10.3 or earlier.

Seashore supports the GIMP’s XCF file format. It ignores but preserves the GIMP’s vector paths and ignores and destroys the GIMP’s selection channels. It also destroys the mask of a layer by composting it on to the alpha channel of that layer. Seashore may inadvertently interfere with other aspects of an XCF file, so make sure to keep a copy of important XCF files before editing them with Seashore.

Unfortunately, Seashore’s save options are pretty basic, and, for example, there is no option to save just the selected area of an open window.

The Information Panel

The information panel presents the user with information on the current cursor position, selection size, and pixel group color. Both the cursor position and selection size can be quoted in any of three measuring units: pixels, millimetres, and inches. To toggle between the units, press the numerical values in the information panel.

An Options palette with three tabbed panels lets you select image attributes, brush sizes and textures.

The image window can be displayed with or without rulers.

Seashore isn’t perfect by any means. Minor to middling annoyances include the inability to save just a selected area of an open window, and you can’t select-copy and drag a portion of an image using a keyboard modifier (i.e.: Option in Color It! or Command Option in Photoshop) while leaving the original selected area undisturbed. You have to copy and paste, which is a lot more cumbersome.

I’m also not enamored with Seashore’s feature of graying out all but the selected area of a document window.

Conclusion: Seashore is a basic (and free), more Mac-like “the GIMP lite” for the less-geekily-oriented, but it’s no Photoshop (or GIMP) replacement for photo correction or advanced image editing. Rating: 4 out of 5.

System requirements: Most features work on Mac OS X 10.3 Panther and later, with the exception of JPG 2000 support, for which Mac OS X 10.4 Tiger is required.

Rating:

Short link: http://goo.gl/nbhHfc

searchword: seashorereview

2020-10-27 10:56:49 • Filed to: Choose Right Mac Software • Proven solutions

You are wondering how to access a free Mac PDF editor, or how to choose the right PDF editor for Mac? Below, we'll cover 10 commonly used PDF editor Mac, all of which are compatible with macOS 10.15 Catalina. By reading this list, you will be able to determine the most cost-effective Mac PDF editing software that also best meets your business needs.

Top 10 PDF Editor Mac

1. PDFelement

PDFelement is a PDF solution integrate with a variety of convenient and practical features for editing, conversion, annotation, OCR, form processing and digital signatures.

This well-rounded PDF editing software is popular among users and has a step up above the competition due its excellent form field recognition and data extraction technology.

Unique Features:

• Fully compatible with macOS 10.15 Catalina.
• Powerful PDF editing and annotation tools that allow for a smooth editing experience.
• It has robust PDF creation and conversion features.
• It allows you to fill and sign PDF forms easily.

Pros:

Pros of this program include clear function classification, a complete set of PDF tools, OCR and batch processing, high compatibility with all operating systems, simple user experience, and interface, and the ability for document conversions.

Cons:

Because of its focus on simplicity, it has less advanced features than programs like Adobe Acrobat. You can download a free trial version to test and purchase the full version after testing.

Picture Editor Mac Os

Supported Systems: Mac, Windows, iOS, Android

Free Image Editing Tool

Other Benefits:

• A smooth and simple interface design
  The full functionalities can be enjoyed by both Windows and Mac users.
• A better experience with PDF forms
  The automatic form recognition feature enables you to create an editable form with just one click.
• PDF editing tools
  You can export data from paper or electronic forms into an editable Excel form.
• Intelligent and smooth editing features.
  A better PDF editing experience lets you keep the fonts and formatting of your original file while converting it.
• It can convert standard PDF file format to longer-lasting PDF / A format for a longer archiving period.

2. Acrobat for Mac

Acrobat is also a powerful tool. As the world's best desktop PDF solution, the brand new look of Acrobat will blow your mind. It also includes a mobile version that lets you fill in, sign, and share PDFs on any device at any location. However, Adobe Acrobat XI has ended support, meaning you might need to turn to an Acrobat alternative if you are looking for dedicated support. Click here to discover the best Acrobat alternative options.

Unique Features:

• Fast document comparison.
• It supports operational procedures for review and approval.
• Automatic form field recognition.
• Create a PDF from Office formats quickly and easily.

Pros:

It has stable functionalities, high efficiency, and high compatibility.

Cons:

It has a lot of advanced features that are complicated and difficult to use for beginners. Plus, the bloated features mean it comes at a higher cost, and you need to pay in order to use the full version.

Supported Systems: Windows, Mac, iOS

Price: $179.88 / Year

More Introduction:

• An attractive user interface that supports touch functionality
  Fully compatible with mobile devices and supports touch functionality with a user-friendly interface.
• Work anytime, anywhere.
  Acrobat has all the tools needed for converting, editing, and signing a PDF anytime and anywhere. You can start a document at work, modify it during the transit ride home, and then send it for approval from the comfort of your living room.
• Edit any file any time
  You won't need to spend your valuable time re-creating new documents. Simply export or convert your file into an easily editable format.

3. PDF Expert

PDF Expert is one of Readdle's premium Apps. It has been the leading producer of PDF processing software on the iOS platform for quite some time. Since the launch of PDF Expert on the Mac platform in 2015, it has become the best application on the Mac App Store in 2015 and has been recommended by Apple editors.

Unique Features:

• Fast speed for page organization and functionalities
• Fluent in adding annotations and editing
• Simple text and image editing functions

Pros:

It possesses excellent reading experience, simple operation, and easy to use. Plus, it has a nice user interface.

Cons:

It has fewer features than other PDF editors, and PDF compatibility could be improved.

Supported Systems: Mac, iOS

Price: $59.99

More Introduction:

• Professional reading experience
  There are smooth scrolling and a quick search function. Choose your favorite layout and complete any task quickly and easily.
• Editing PDFs is seamless.
  PDF Expert for Mac helps you format text and paragraphs easily. It will automatically detect fonts, and editing a PDF document is as easy as using any other program to edit a document.
• Fill in and sign PDF forms effortlessly.
  Fill PDF forms easily, such as application forms, tax reports, shopping lists, you name it. You can sign a contract by using a legally valid personal e-signature in just a few clicks.
• Integration, sharing, and collaboration
  Add notes or comments to easily collaborate with colleagues. You can also use a password to protect your sensitive files and documents.
• Compatibility with iPhone, iPad, and more
  PDF Expert is compatible with all Apple platform products: Mac, iPad, and iPhone. It allows you to transfer documents across these devices seamlessly. Your work can be done anytime and anywhere.

Get the best PDF Expert alternative now - PDFelement.

4. PDFpenPro

PDFpenPro is a professional program heavily influenced by Preview. It is fully compatible with macOS X for PDF documents. It keeps the original operation processing feature of Preview, which fits more user's operating habits and is more convenient for a beginner user. There are also functional enhancements. You can add signatures, text, and images, as well as make changes, correct typos, and perform OCR on scanned documents. It allows you to fill and create fillable forms, as well as convert PDF to Word, Excel, and PowerPoint formats.

Unique Features:

• Simple form field creation
• Intuitive annotation properties

Pros:

It meets basic PDF editing needs, and the operating experience is similar to that of Preview.

Cons:

Not all languages are supported, such as Chinese. It also has weak text and page editing capabilities compared to other programs.

Unique Features: Mac, iOS

Price: $124.95

More Introduction:

• Generic PDF editing tools
  You can use PDFpenPro to add text and signatures, amend the text, and use OCR for scanned documents.
• Make interactive PDF forms for Mac and Windows.
  You may create an interactive form by using check boxes, text boxes, radio buttons, and interactive signature fields.
• Exports MS Office formats to PDF
  It allows you to export a PDF to Excel, Word, PowerPoint, and save as a PDF/A format.
• Store your PDF in the cloud
  You can edit your PDF at any time and can use the PDFpen on an iPad or iPhone to edit a PDF seamlessly over iCloud or Dropbox.

5. Preview

As a built-in PDF software on Mac, Preview allows for the limited ability to read and browse PDF formats, as well as make simple annotations. It can meet your primary requirement of reading and editing PDFs. But if you have more advanced PDF editing needs, Preview will not be suitable.

Pros:

Build-in system, more preview formats, and read files fluently.

Cons:

Poor compatibility, lack of professional functions, and PDF content can only be edited in the most basic ways.

Supported Systems: Mac

Price: Free

More Introduction:

• Quick annotation
• You can quickly arrange pages by dragging and dropping thumbnails
• The camera is able to recognize handwritten signatures quickly.

Learn more about Preview here >>

6. Skim

Skim is a free Mac PDF editor. It functions like Preview, offering markup tools that help highlight important PDF content. You can also add and edit notes, crop PDF files, and more.

• View PDF files.
• Add and edit notes.
• Highlight text.
• Take snapshots of PDF files.
• Give presentations with built-in transitions.

7. PDF Nomad

PDF Nomad is unique editing software that provides a number of editing tools. The software supports the editing of images and texts in PDFs. It also allows you to arrange, split, and merge PDF pages in a document. Some of the tools in this software also make it easier for you to rotate, scale, and crop PDF files.

Pros:

• It can be used to edit all aspects of PDF files, including images.
• It comes with an Optical Character Recognition (OCR) feature that makes editing scanned PDFs very easy.
• You can use it to annotate a PDF document.

Cons:

• The free version lacks many features, and at $75 the pro version is somewhat expensive compared to others.

8. Master PDF Editor for Mac

Master PDF Editor is PDF editing software for Mac that comes with loads of features allowing you to convert PDF to numerous other file types and edit just about any aspect of your PDF document.

Pros:

• It can be used to edit both text and images.
• You can convert PDFs to other formats, including Word and Excel.
• It works with Linux.

Cons:

• The complex interface makes it difficult to use for beginners.
• The free version has limited capabilities.

9. Scribus for Mac

Scribus is a free PDF editing software for Mac that can be used to open PDFs and even edit certain aspects of the PDF document. It is one of the easiest programs to use because the user interface is simple and clean. You can also use it to annotate PDF documents if you want to highlight and edit sections of the document you consider important.

Pros:

• It is very easy to use.
• It can be used to edit both text and images.

Cons:

• It can't be used to convert PDFs.

10. PDF Buddy

This is another online tool that can be very useful when you want to edit PDF documents. This PDF editing software for Mac comes with a lot of features that can be used to manipulate a PDF document in many ways. You can add text, add and remove images and even split and merge PDF files. It can also be used to add signatures to your PDF document.

Pros:

• It is free to use.
• It lets you make numerous edits to your PDF files.
• There is no limit to the size of the PDF file you can work with.

Cons:

• It sometimes fails to download the file after editing.

There you have it - the 10 Best Free PDF Editor Tools for Mac. Now that you've had time to research the best PDF editor for Mac, don't hesitate to try out PDFelement now to see if it's right for you!

Free Download or Buy PDFelement right now!

Free Download or Buy PDFelement right now!

Buy PDFelement right now!

Buy PDFelement right now!