How to sign a scanned document online

Sign a scan in three steps

1. 1

   Open the scanned file in the free signer

   Scanned PDFs (including multi-page ones), JPGs, and PNGs all load locally. Image files are wrapped into a PDF automatically.

2. 2

   Place your signature on the signature line

   Scans have no interactive fields, and that's fine, you position the signature visually. Zoom in to land it precisely on the printed line.

3. 3

   Download the flattened PDF

   The signature becomes part of the page image, exactly like ink on the original paper, ready to email back or print.

Why scans don't need OCR or fillable fields to be signed

Some tools make signing a scan feel complicated because their machinery expects detectable form fields or a text layer. Placing a signature doesn't need either: a human can see the signature line and drop the signature on it. That's the whole interaction, which is why an image-only scan is a first-class citizen here, not a degraded case.

Skip the print-sign-rescan ritual entirely: each rescan degrades quality and wastes ten minutes. Signing the scan digitally keeps the document at its original quality with a clean, flattened signature on top.

Frequently asked questions

Does this work with image-only scanned PDFs?

Yes, no text layer or form fields are needed. The scan is rendered as-is in your browser and you place the signature visually, exactly where the printed line is.

Can I sign a multi-page scanned contract?

Yes. Multi-page scanned PDFs load with page navigation, place your signature on the last page and initials on the others, all in one pass, then download the single flattened PDF.

Is the scan uploaded for processing?

No. Rendering and signing happen in your browser, scans often contain the most sensitive paperwork (IDs, contracts, medical forms), which is exactly why the no-upload design matters. Verify it yourself by signing in airplane mode.