The short answer: every tool is still free. No sign-up, no watermark, nothing locked behind a trial. What changed is that Pro now exists, and the free plan has limits that it did not have before. This article used to say Pro was not for sale; it is, so here is the whole picture instead.
What free includes
Every tool, with files up to 20 MB, up to 5 files in one task (2 for compressing, protecting and the Office conversions), and 3 Office conversions a day - Word, Excel and PowerPoint to PDF, and PDF to Word and Excel. Uploads are anonymous unless you choose to sign in, and nothing about the output changes: no watermark, no reduced quality.
The PDF editor is the exception to the size limit. It opens your file on your own device and never uploads it, so it costs the server nothing and takes files up to 100 MB on every plan.
What Pro adds
Files up to 250 MB, up to 20 files in one task, no daily limit on Office conversions, and first place in the processing queue - a Pro job goes ahead of free ones. Pro is also ad-free for good, whatever the free plan does later, and comes with priority email support.
It costs $5 a month, or $30 a year, which works out at $2.50 a month. Payment goes through Lemon Squeezy, so your card details never reach our servers, and you can cancel from your account page at any time and keep Pro until the end of the period you paid for.
Why the free plan changed
This article once said a paid tier would not work by taking things away from the free one. Honestly, it partly does: the largest free file went from 100 MB to 50 MB, then to 20 MB, and the Office conversions now have a daily count. That deserves a straight explanation rather than silence.
Everything runs on one server, one job at a time. The Office conversions start a full copy of LibreOffice for each file, and a very large upload holds the queue for everyone behind it. The free limits are set so that a person converting their own documents rarely meets them, while the work that genuinely costs the most is what Pro pays for. Merging, splitting, compressing, protecting and editing have no daily count, beyond a fair-use ceiling that exists to stop scripts rather than people.
What was planned, and is now built
Two things this article once listed as planned have since arrived. The Office conversions take several files in one task, 2 on the free plan and 20 on Pro, and can combine Word, Excel or PowerPoint files into one PDF. And PDF to Word and PDF to Excel can read scanned pages with OCR, which is part of Pro.
