Steghide might be a bit more popular than IrfanView. We know about 3 links to it since March 2021 and only 3 links to IrfanView. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
It doesn't sound like you need animations or other effects here, just still images. If that's so, you could: Export the slides to high resolution images (at least high enough to match the highest resolution your projectors are capable of). Use a PC to drive each projector; the cheapest, oldest PC in the place will be more than adequate. Run a program that can fill the screen with an image (and if needed, switch... Source: 12 months ago
Scantailor (https://scantailor.org) is the tool for self-scanned books that exist in images (png, jpg, etc). However, I usually use Irfanview with PDF plugin (https://irfanview.com - download both Irfanview and the Plugins from this home page) I have elsewhere in r/PDF shown how you can do batch splitting of two-page scans, clean up muddy pages (yellowed or browned) . In the Reddit search box, search for... Source: over 1 year ago
From there, open your favorite image editor (I use & recommend irfanView BTW 😁) & paste it there. Then save it (I HIGHLY recommend saving it as a JPEG file). Source: over 2 years ago
Lately I was playing with pass and trying to setup a self hosted service. I don't think it'll work for me, but along the way I ran into an extension for Tomb. Tomb handles encrypted files and it can work with a tool called Steghide. Steghide will let you hide a message in an image and recover it later. Imagine if you had a library of family photos and one of them has your master password buried in it. You could... Source: about 1 year ago
It hasn't been packaged for void yet, but you can try compiling it yourself; source seems to be here. Source: over 1 year ago
A slightly different concept but to "hide" data in other files (images/audio) is steganography or this cool opensource tool called steghide http://steghide.sourceforge.net/ Interestingly if you do it with audio files, tools like my eXtace (extace.sourceforge.net) (a realtime FFT visualizer for sound) will show it quite clearly in the frequency domain whereas it'll be pretty much invisible in the time domain. Source: over 2 years ago
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
Openstego - OpenStego is a tool implemented in Java for generic steganography, with support for password-based...
FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.
OpenPuff - OpenPuff is a professional steganography tool: HW seeded random number generator (CSPRNG)
JPEGView - JPEGView is a small and fast viewer/editor for JPEG, BMP, PNG, GIF and TIFF images.
SilentEye - SilentEye is a cross-platform application design for an easy use of steganography, in this case hiding messages into pictures and sounds.