OptaPDF vs Sejda: Free PDF Tools Compared (2026)
Search for a free PDF editor and Sejda comes up fast — and deservedly, because its in-browser editor is one of the better free ones around. So where does OptaPDF fit, and which should you actually reach for? Here is an honest, side-by-side look, including where Sejda is genuinely the stronger pick.
At a glance
| Feature | OptaPDF | Sejda |
|---|---|---|
| Price | 100% free, all tools | Free tier + paid plans |
| Free-tier limits | No task/hour cap | ~3 tasks/hour, file size & page caps |
| Visual PDF editor | Lighter editor | Strong in-browser editor |
| Account required | Never | Not for free tier; pushed for more |
| Watermarks | None | None on core tools |
| File deletion | Within 30 minutes | After a couple of hours |
Where Sejda is genuinely strong
Credit where it is due. Sejda’s free in-browser PDF editor is a standout — you can click onto the page and edit existing text, drop in images, and rearrange content more freely than most free tools allow. If your main job is hands-on visual editing of a document, that alone can make Sejda the right call. It also has a broad, mature tool set and a desktop option.
Where OptaPDF wins
- Truly unlimited free use — no “you have used your 3 tasks this hour” wall.
- No account, ever — open a tool, drop a file, download.
- Strict privacy defaults — automatic 30-minute deletion, no manual review.
- Fast single-purpose tools — Merge PDF, Compress PDF, Rotate PDF and save permanently, and more, without hunting through a busy interface.
Which should you pick?
Pick Sejda if deep in-browser text-and-image editing is your primary need and the free-tier hourly limits do not get in your way.
Pick OptaPDF if you want unlimited free tasks, no account, strong privacy defaults, and quick focused tools. Try Edit PDF for light edits or PDF to Word when you need to edit the text in a word processor instead.