Comparison
DockDocs vs Smallpdf: which keeps your files more private?
Both handle PDFs well — the real difference is where your file goes. Smallpdf uploads it to its servers (encrypted, then deleted after an hour); DockDocs' client-side tools don't upload it at all, which you can verify in DevTools. Here's the honest comparison, with sources.
Smallpdf quotes verified as of 2026-06-22 · see the linked sources · policies may change.
DockDocs vs Smallpdf: file handling
Verified facts, as of 2026-06-22 — policies may change.
| DockDocs | Smallpdf | |
|---|---|---|
| Where files are processed | Client-side PDF tools run in your browser — file never uploaded (0-byte upload, verifiable in DevTools). AI features send only extracted text, not the file. | “a secure tunnel between your device and our servers” [source ↗] |
| File deletion | Client-side tools upload nothing, so there's nothing to delete. | “Files are permanently removed from our servers after one hour of processing” [source ↗] |
| Encryption in transit | Client-side tools transfer no file at all; AI text is sent over HTTPS. | “256-bit TLS encryption” [source ↗] |
| Third-party certification | None claimed — privacy is self-verifiable in DevTools rather than relying on a certificate. | “ISO 27001 certified · GDPR and CCPA compliant” [source ↗] |
| Pricing | Client-side PDF tools free (no account, no watermark); AI/Pro paid. | Free tier + paid plans (see smallpdf.com/pricing) |
What the difference actually means
Smallpdf encrypts your upload and says it deletes the file after an hour — but the file is still uploaded to a server, and you're trusting that the deletion happens as described. DockDocs' client-side tools don't upload the file at all: there's no server copy to delete and no deletion policy to trust, because the file never leaves your device. For tasks that can run in the browser, that's a guarantee you can check rather than take on faith.
In fairness: Smallpdf is a mature, polished product with a broad, well-designed toolset and a large user base. Its one-hour deletion and 256-bit TLS encryption are reasonable protections, and for many tasks it's a perfectly good choice.
How to verify it yourself
Open either tool's page, open DevTools → Network (F12), and run it on a file. A server tool shows a large outbound request carrying your file; a client-side tool shows no file upload. You don't have to take anyone's word for it — including ours.
Does Smallpdf upload my files to its servers?+
Yes. Smallpdf is server-based — your file is uploaded over an encrypted connection (“a secure tunnel between your device and our servers”), processed, and, per Smallpdf, “permanently removed from our servers after one hour of processing” (as of 2026-06-22).
How is DockDocs different?+
DockDocs' client-side PDF tools process files in your browser and don't upload them at all — a 0-byte upload you can confirm in DevTools → Network. There's no server copy to delete because the file never left your device. AI features send only the extracted text, not the file.
Which keeps my files more private, DockDocs or Smallpdf?+
Both encrypt, and Smallpdf auto-deletes after an hour. The structural difference: Smallpdf uploads the file (you trust the deletion happens), while DockDocs' client-side tools don't upload it at all (you can verify there's no upload). For tasks that run in the browser, “never uploaded” is the stronger, checkable guarantee.
Can I verify this myself?+
Yes. Open DevTools → Network (F12) and run a tool: if your file is uploaded you'll see it; if not, it stayed on your device. The Smallpdf quotes here link to its own page so you can read the current terms.
Related: DockDocs vs iLovePDF · All three compared · Is it safe to upload PDFs?
Sources
Smallpdf quotes are from its own pages, accessed 2026-06-22:
- Smallpdf — Is Smallpdf Safe?
These are third-party pages we don't control; their terms may change. Check the source for current wording.