I was wondering if I may redownload Calibre 4.23 Portable because the DeDRM tool doesn't work in higher versions? Please help.
New: StressMyPC (Dec 10, 2025), Platform 30.1.3 (Nov 17, 2025)
1,400+ portable packages, 1.2 billion downloads
We're close to breaking even this year, please donate today
December 2025 Site Slowdown Being Addressed
You can get previous versions of our open source apps from our SourceForge project. Here's the calibre section: https://sourceforge.net/projects/portableapps/files/calibre%20Portable/
Sometimes, the impossible can become possible, if you're awesome!