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Mofumi PDF

Sign PDF

Draw, type or upload your signature and place it anywhere on the page — free, private and without an account.

100% Private — files never leave your device
Upload PDFDrop files here or click to chooseAccepted: PDF Files never leave your device

About this tool

Sign PDF adds a visual signature to contracts, forms and approvals. Draw with your mouse, finger or stylus (strokes are smoothed automatically), type your name in a handwriting style, or upload a photo of your signature — the white background can be removed for you.

Click the page to place the signature, then drag to move it and pull the corner to resize. You can place several signatures and initials on different pages, or repeat one on every page with “Apply to”.

Everything happens in your browser: your signature image and the document never leave your device. Note that this is a visual (electronic) signature. For a cryptographic signature with a certificate, use Digital Sign PDF.

Engines: pdfjs · canvas · pdf-lib

How to use

  1. 1

    Open the PDF you need to sign.

  2. 2

    Draw, type or upload your signature, then click the page to place it.

  3. 3

    Move and resize it, then click “Sign PDF” and download.

Use cases

  • Sign a contract

    Add your signature to the last page and initials to every page in under a minute.

  • Approve documents

    Sign purchase orders, leave forms and invoices without printing and scanning.

  • Fill and sign forms

    Combine with Form Filler to complete and sign application forms.

Frequently asked questions

Is my signature uploaded anywhere?

No. It is created and embedded in your browser; Mofumi has no server that sees your files.

Is this legally binding?

Electronic signatures are accepted for many agreements in Thailand and elsewhere, but requirements vary. For regulated documents use a certificate-based digital signature.

Can I add the same signature to every page?

Yes — set “Apply to” to all pages (or a page range) and the signature is repeated at the same position.

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