81 votes
Accepted

A standalone SVG editor?

How about Inkscape? It is: free and open source, has a perfectly compliant SVG format file generation and editing, can open a number of other vector formats, with the help of extensions, can ...
Alex's user avatar
  • 1,974
22 votes

Simple program to edit screenshots (add texts and arrows, mark stuff) on Linux

Flameshot Super easy to use. I mapped it to my PrtSc.
Alnitak's user avatar
  • 321
11 votes

Any apps/sites to vectorize images for free?

In the apps category (Windows, Mac, Linux), one can use Inkscape to perform a trace bitmap operation. The results are usually of reasonable quality and may require some manipulation of the parameters ...
fred_dot_u's user avatar
  • 2,343
10 votes

A standalone SVG editor?

As already mentioned I would go with Inkscape if you want a full featured SVG editor with great design capabilities and powerful tools. If you want something simpler however, are looking for a web ...
Duarte Farrajota Ramos's user avatar
7 votes
Accepted

Online vector-based image editor, that doesn't use Flash

Take a look at http://editor.method.ac/ You have no layer overview but you can send the items forward and backward.
Markus's user avatar
  • 1,148
6 votes

Free photo editor for Windows

Having an Explorer window which you switch to with alt-tab and drag&dropping Images to GIMP (which can even be combined with alt-tab) is what I would suggest.
Euri Pinhollow's user avatar
5 votes

Photoshop alternatives for Mac?

For any platform I cannot recommend GIMP enough. Cross Platform OS-X, Linux, Windows Free, gratis & open source Very powerful You can also extend it with a large number of plug-ins but I would ...
Steve Barnes's user avatar
  • 31.6k
5 votes

Software for bulk image editing

For Windows I have to recommend IrfanView. Their website is pretty ancient, but the software is reliable and the batch functions work for everything I've ever needed them for. Install IrfanView and ...
Purple Haze Design Group's user avatar
4 votes
Accepted

Which software to light pen text on an image ?

If you are just looking for simple easy to use software I highly suggest you try using Lightshot. It's a nifty little tool that lets you use a highlighter on the image as well as draw arrows, lines, ...
nvillalobos's user avatar
4 votes

Software to add border to photos in bulk

ImageMagick works on Windows and several other OS, but I could not find a DEB file for Ubuntu is free, even for commercial use can add all kinds of borders supports many formats and can convert ...
Thomas Weller's user avatar
4 votes
Accepted

Touch-optimized paint program

A long, long, long time ago, I've used an application TuxPaint. It's an extremely easy to use painting/drawing application designed for children and appears to have a very easy to use UI. It also has ...
Tom's user avatar
  • 7,699
4 votes

Software for bulk image editing

For Free and Open Source image manipulation, you can never go wrong with GIMP. For editing images in bulk (Batch Processing), I would suggest getting the BIMP plugin for GIMP. Plugin installation is ...
MrPublic's user avatar
  • 403
4 votes

A standalone SVG editor?

Any semi-decent vector editing application should fulfil your requisites (except being free). In addition to the already mentioned Inkscape, Gravit Designer is a good choice (you can use it both in ...
user137369's user avatar
3 votes

Photoshop alternatives for Mac?

For many years, the main alternative to Photoshop I have found is Pixelmator, although the new kid on the block is Affinity Photo. Both are built for the Mac and are in the $30-40.
caorongjin's user avatar
3 votes
Accepted

Free, open source C# image resize and optimize library

I suggest Magick.NET: supports over 100 major file formats Open source Linked with ImageMagick, which is the reference in this domain, most image transformations (thumbnails, optimisations) on the ...
Nicolas Raoul's user avatar
  • 19.5k
3 votes

Star trail software

Lots of tutorials on the net for how to make star trails using gimp which is a free, open source, cross platform and very powerful photo editing tool. One that I found that was nice and concise was ...
Steve Barnes's user avatar
  • 31.6k
3 votes

Linux program like Windows 7 MS Paint

Currently, there are more alternatives, like KolourPaint. I really like it's simplicity.
Eduardo Jiménez's user avatar
3 votes
Accepted

Lossless JPEG crop GUI for Linux

CropGUI can do that. Strong points: Extremely fast to start. Does the lossless crop. Open source (GPLv2). Weak points: It is a bit bothersome to install (clone from Github and install the ...
Nicolas Raoul's user avatar
  • 19.5k
3 votes

Image Resize + Compression + Progressive JPEG Conversion (+ Cropping optional) All-in-One?

IrfanView is a free image-editing tool with a many batch-operation options, as shown below, and the JPEG save dialog includes the progressive option. It is a Windows application, but runs well under ...
DrMoishe Pippik's user avatar
3 votes
Accepted

Image software for creating a repetitive background of seamless tiles

I recommend Paint.NET with the Seamless Helper Plugin (direct download). After installation of Paint.NET, you need to copy that DLL file to C:\Program Files\paint.net\Effects\SeamlessHelper.dll. Here'...
Thomas Weller's user avatar
2 votes

Freeware EMF image editor

The test file provided in the comments will open without failure in Inkscape 0.92, a more recent version than the referenced 0.91 failure. It also "save as" fine with 0.92 in .emf format.
fred_dot_u's user avatar
  • 2,343
2 votes
Accepted

What simple open source photo/image editors exist there on android?

Phimp.me has the cropping/rotating features you mention, in addition to a wide range of other features. I haven't found a resize feature yet, though I haven't looked hard. There is apparently a ...
Nithin NS's user avatar
2 votes

What simple open source photo/image editors exist there on android?

Can't do photo resizing but the Gallery app from LineageOS, based on AOSP, does have cropping, rotation, and filters. I don't know if this source code is up to date, though, but it does look and work ...
YAOMTC's user avatar
  • 21
2 votes

PDF document signing

Digital Signing PDF or document using just image is not the best option for non-repudiation. You may use Digital Signature Certificate issued by Certifying Authority in USB Token or Smartcard to ...
Bharat Vasant's user avatar
2 votes

Software that can help reduce yellow color from camera pictures of a book?

I would suggest using Image Magick to correct the colour balance - once you have decided the level of changes that you need it will whip through your images converting them all to another name or ...
Steve Barnes's user avatar
  • 31.6k
2 votes

Program to quicly remove specks from images

I would recommend The GIMP (GNU Image Manipulation Program). Specifically, you might try the GIMP Despeckle plugin.
Stephen G Tuggy's user avatar
2 votes

Software to add border to photos in bulk

IrfanView works well for me for sets of images. Here are some how-to notes Here is my stored procedure for border insertion - Infran Procedure to add a border Right-Click image, 'Open with'->'...
J-Dizzle's user avatar
  • 121
2 votes

Software to add border to photos in bulk

You can use gimp on batch mode over all files in folder and run gimp scripts for visual effects like this one for borders.
Rogelio Triviño's user avatar
2 votes

A standalone SVG editor?

Just use any plain text editor. I use mousepad. SVG is just an XML file with a well defined and stable DTD, analogous to HTML. If you really want to be able to control your images, manually editing ...
Better_To_Learn_The_Hard_Way's user avatar
2 votes

Free open source paint program for Windows

PhotoDemon seems a good fit You can paste a screenshot or an image It's open source and free You can draw with pencil / add text Works from XP to Windows 10 Portable as well :) Straightforward if you ...
Sonamor's user avatar
  • 1,133

Only top scored, non community-wiki answers of a minimum length are eligible