PDF Tools

Sign PDF

Add a visible signature to a PDF locally in your browser without certificate signing or legal-signature claims.

Local PDF PDF Tools

Waiting

Runs in your browser. Files do not leave your device.

Input

Sign PDF. Process files locally in your browser. Nothing is uploaded.

Drop files hereUp to 25MB each and 75MB per batch.

Visible signature only. This does not add certificate signing, identity verification, an audit trail, or legal compliance guarantees.

Or draw signature

Details

How this works

Place a visible signature

Choose a PDF, type, draw, or upload a signature image, set the page and position, and download a visibly signed copy.

Input
agreement.pdf
Output
agreement-signed-visible.pdf
Edge cases
  • This does not create a digital certificate signature.
  • This does not verify identity, provide an audit trail, or guarantee e-signature compliance.
  • Review rotated pages and existing form signature fields before sharing.
Accuracy
  • The output is a visual PDF mark only.
  • Open the downloaded PDF and confirm placement before sending it.
Privacy
  • Signing runs locally in your browser.
  • The PDF and signature image are not uploaded for this tool.

Guide

How to use Sign PDF

Step-by-step

  1. Choose or enter pdf in the workbench.
  2. Run the sign tool locally in your browser.
  3. Download the pdf result and review it before sharing or archiving.
  4. Use the related tools on this page for cleanup, validation, conversion, or the next step in the workflow.

Questions

Is Sign PDF free to use?

Yes. The public tool is free to use in your browser.

Are my files uploaded?

No. This tool runs locally in your browser, so selected files or pasted input are not uploaded to Convurter.

What should I check before using the pdf result?

The output is a visual PDF mark only. Review the final output before using it in production work.

What can I do after this?

Good next steps include Signature Field Placement Checker, PDF Signature Field Checker, and PDF Form Field Risk Checker.

Workflow fit

Use Sign PDF in the right place

If you are unsure, start from the PDF chooser and pick by task: inspect, organize, compress, convert, print, compare, or flatten.

Best for

  • PDF workflows where page order, hidden document signals, output size, or final sharing quality matters.
  • Preparing a review, upload, print, or archive copy without turning the page into a generic article detour.
  • A focused sign task where the expected output is pdf.

Before you start

  • This tool runs in the browser, so keep the tab open until the result is created and downloaded or copied.
  • Keep an original PDF copy outside the workbench before creating edited, flattened, compressed, or converted outputs.
  • If the document has passwords, unusual permissions, forms, annotations, or scripts, inspect those signals before finalizing a sharing copy.
  • Finish page-order changes before adding page numbers, watermarks, compression, or other final-copy operations.
  • Confirm the exact input and output expectation before running the tool.

Quality checks

  • Review the output before sharing, publishing, submitting, or using it as a final artifact.
  • Open the output PDF in a reader after processing; PDF structure can change even when the visible pages look similar.
  • Check page count, page order, orientation, metadata, and file size against the actual destination requirement.
  • Use checksums when the exact final copy needs to be referenced later.
  • Download and open the file output before leaving the page or deleting the source copy.

Common mistakes

  • Compressing a PDF before deleting, extracting, or reordering pages creates extra throwaway versions.
  • Assuming visible page content is the whole document misses metadata, links, attachments, actions, annotations, and permissions.
  • Using text extraction on scanned pages will not create OCR text. Treat no-text results as a scan signal.
  • Closing the tab before downloading or copying a browser-generated result.
  • Treating the first result as final without checking the destination requirement.

Verify or clean up

Use these when the output needs checking, cleanup, comparison, compression, or a final share-ready pass.