Bluebird vs Sejda: which free PDF editor doesn't cap you at 3 tasks?
Sejda has one of the best browser PDF editors, but the free tier is strict — 3 tasks per hour, 200 pages or 50 MB per file, and a hard push toward Sejda Web (~$7.50/mo). Sejda also uploads every file to their servers. Bluebird runs everything client-side with no task ceiling, no page cap and no account.
Feature-by-feature comparison
| Feature | Bluebird | Sejda |
|---|---|---|
| Free tasks per hour | Unlimited | 3 tasks / hour |
| Page limit per PDF (free) | None | 200 pages |
| File size limit (free) | Device RAM only | 50 MB |
| Files uploaded to a server | Never | Yes |
| Sign-up required | No | For most edits |
| Desktop app option | Install as PWA | Yes, Sejda Desktop |
| Price | Free forever | Free tier + $7.50–13/mo |
| Works offline | Yes, after first visit | Only via desktop install |
The honest verdict
Sejda's inline PDF editor is genuinely excellent — if you edit PDFs professionally every day, it's worth the money. For occasional edits, form filling, merging or splitting, Bluebird gets it done free with no daily ration.
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Frequently asked
Can Bluebird edit PDF text like Sejda?+
Yes — you can add text, images and signatures. Rewriting original embedded text (which requires re-flowing fonts) is still Sejda's strong suit for scanned or complex layouts.
Does Bluebird cap large PDFs?+
No hard cap. The only limit is your browser's memory. Files over ~500MB should use the Large File Mode where available.
Do you have a desktop app?+
Bluebird installs as a Progressive Web App on Mac, Windows, iOS and Android — same code, no separate download.