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Sign a PDF

Create or import a signature, place it where needed and add an optional caption. Saved reusable signatures remain in this browser.

No file bytes are sent to Lutrakit.

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Place a visible signature on a PDF

Draw a signature or import a PNG, JPEG or WebP image, then place the visible mark on a PDF page. The result is a marked copy, not a certificate-based digital signature.

How to use it

  1. Choose the PDF, then draw your signature or import its image. Adjust its appearance before placing it.
  2. Open the intended page and position and resize the mark in the preview. Add placements on other pages if needed.
  3. Name and download the PDF, then open the saved copy to check every placement.

Example

Starting point
A three-page PDF with one signature placement added on page 3.
What to expect
A three-page PDF with that visible mark on page 3. The mark does not establish the signer's identity or provide a cryptographic verification certificate.

Before you start

  • PDF input is limited to 100 MiB and a single operation to 32 placements; signature images also have processing limits.
  • Check the recipient's required signature method before using the file. Editing a previously signed PDF may affect validation of its existing digital signatures.
  • Saving a signature for reuse stores it in this browser. Avoid that option on a shared device and remove saved marks when they are no longer needed.