SignDrop vs Smallpdf
Sign PDFs without uploading them anywhere
The honest answer: Smallpdf is a handy online toolbox — compress, convert, merge, and eSign — but the free tier is capped and every document you sign is uploaded to their servers first. SignDrop does one thing, signing, with no upload at all: the PDF is processed inside your browser and never leaves your device. Unlimited, free, no account.
Side by side
| Smallpdf | SignDrop | |
|---|---|---|
| Price for signing yourself | Free tier with daily task limits; Pro subscription for more | Free, unlimited |
| Account required | Needed for some features | No |
| Where your documents go | Uploaded to Smallpdf servers for processing | Never uploaded — processed locally in your browser |
| Sign with your finger on a phone | Draw on the website | Yes — scan a QR code and draw with your finger |
| Other PDF tools (compress, convert, merge) | Yes — 20+ tools | No — signing only |
| Works offline | No | Yes (except the optional phone-QR feature) |
Smallpdf is the better pick if you:
- Regularly need the whole toolbox — compressing, converting, merging, splitting PDFs
- Prefer a website over installing a browser extension
- Need to request signatures from someone else (their paid eSign tier)
SignDrop is the better pick if you:
- Mainly need to sign documents — the one tool, done properly, with no daily cap
- Don’t want contracts and personal documents uploaded to a third-party server
- Want to keep a local library of everything you’ve signed
- Want a real signature — drawn with your finger via QR, not a shaky mouse line
How SignDrop works
- Open a PDF in Chrome (or upload one in the SignDrop popup)
- Draw, type, or upload your signature — or scan a QR code and sign with your finger on your phone
- Download the signed PDF — it never leaves your device
Common questions
Why does it matter that Smallpdf uploads my PDF?
Usually it’s fine — Smallpdf deletes files after processing. But leases, medical forms, and contracts contain personal data, and an upload is an upload: it transits and briefly lives on someone else’s infrastructure. SignDrop’s approach removes the question entirely — the file never leaves your machine.
Is SignDrop’s free plan actually unlimited?
Yes. There is no paid plan to push you toward — no daily task limits, no watermarks, no trials.
Can SignDrop compress or convert PDFs too?
No — it only signs and fills documents. If you need the full toolbox, Smallpdf or a desktop app is the right call; many people use both.
Just need to sign the thing?
Add SignDrop to Chrome — freeFree forever · No account · Your documents stay on your device