Doom Converter

Sign PDF

Draw, type or upload a signature and place it on a PDF page. Add initials or a date when needed, then save a copy for review or sharing.

Drop your PDF file here

Choose a file to get started.

Files stay on your device No sign-up Free to use

How it works

  1. 01

    Open the signing page

    Open the PDF and create a signature.

  2. 02

    Create and position a signature

    Place it on the page and adjust its size and position.

  3. 03

    Inspect the signed copy

    Save the document and check the signature placement.

Sign PDF
Edit & sign

Draw, type or upload your signature and place it on the page

Fit a signature inside a form box

A form has a signature box near the bottom. Place a signature within that box and add a date only if the form requests it. Create a signature, click inside the correct box and resize from its corner. Keep any printed date and witness fields unobscured.

✓ Confirm the correct page and signature box, then check nearby form values were preserved.

Make it work for your document

Options after selecting a file

Signature source

Draw, type or upload the appearance to place on the PDF.

The result is a visible mark, not a certificate-based digital signature or identity verification.

Placement and size

Click the page to place the signature, drag to move and pull its corner to resize.

Resizing cannot improve a low-resolution uploaded image; verify the signature stays within the intended box.

Frequently asked questions

The details, when you need them.

Does this create a certificate-based digital signature?

No. It adds a visible signature mark to the page.

Can I upload an existing signature image?

Yes. Use the signature image option, then place and resize it.

Prepare a clear signature mark

Choose a method that gives a readable result at the final size. A large image may need to be scaled down to fit a signature field. Check page rotation and make sure the mark does not cover nearby instructions. You can add initials or dates as separate items in the editor.

Understand what this tool creates

The result is a visible signature mark on a page. This tool does not provide certificate-based digital signing, identity verification or a signing audit trail. Requirements vary by recipient, so confirm that a visible signature is accepted for your workflow. Keep any original signed or certified document separately.

No cryptographic identity proof

A drawn or typed signature is not a certificate-based digital signature and does not establish identity or legal validity.

The signature is misplaced

Placement and resizing are visual operations on the selected page. Move or resize the added signature and inspect the downloaded page rather than relying on the editor alone.

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