Smallpdf is one of the most recognisable names in online PDF work. It bundles compress, merge, split, convert, edit, sign and unlock into one clean interface — but the free tier is limited, so it is worth knowing exactly what you get before you start.
The interface is the main draw: every tool is a single drop zone with no configuration, which makes it fast for one-off jobs. Upload a PDF, pick what you want, download the result.
The free plan is genuinely usable but constrained. There is a daily task allowance and file-size limits, so it suits occasional work rather than a regular workflow. Heavy or daily use means a subscription.
Tool coverage includes conversion both ways (PDF to Word, Excel, PPT, JPG and back), compression, merging, splitting, page rotation, e-signature, unlocking password-protected files, and OCR on paid plans.
| Registration | Not required for basic use (account raises limits) |
|---|---|
| Watermark | None on most tools |
| Free tier | Limited tasks per day, file size capped |
| Paid | Subscription for unlimited use and larger files |
| Main tools | Compress, merge, split, convert, edit, e-sign, unlock, rotate |
| Platforms | Web, plus desktop and mobile apps |
| Processing | Server-side (files are uploaded) |
Check before you rely on it: free quotas, file limits and pricing change frequently. Confirm current terms on the official site before depending on it for regular work.
Office workers and students with occasional PDF jobs who value clarity over unlimited use. For daily or bulk processing, the subscription cost is worth comparing against desktop alternatives.
Partly. There is a free tier usable without registration, but it limits tasks per day and file size. Unlimited access requires a subscription.
A limited number per day. The exact allowance changes, so check the current terms on their site.
Most tools do not add a watermark, though the free tier restricts how much you can do.
Yes, in both directions, and formatting fidelity is generally good for text-based documents.
Files are uploaded for processing and removed from their servers after a short retention period. Do not use it for highly confidential documents.
Yes, you can sign PDFs electronically and request signatures from others.