Firmar PDF — Herramienta Online Gratuita
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By the AllFileBox Team · Last updated: 2026-07-05
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Sign PDF is a free online tool that lets you add your signature to a PDF by drawing it, typing it, or uploading an image, then place it anywhere on the page.
Sign without printing
Signing used to mean printing, signing by hand, and scanning back. Sign PDF removes those steps: you create a signature once and drop it onto the document, saving paper and time. It is ideal for contracts, forms, and approvals you need to return quickly.
Draw, type, or upload
Draw your signature with a mouse or finger, type your name in a signature font, or upload a photo of your handwritten signature. You can resize and position the signature precisely, then save it into the PDF.
Cómo Usar Firmar PDF
- Open Sign PDF in your browser.
- Drop your PDF onto the upload area.
- Create a signature by drawing, typing, or uploading.
- Place and resize it on the page.
- Download the signed PDF.
Return contracts fast
Return contracts fast
Sign an agreement on screen and send it back without printing or scanning.
Approve forms
Add a signature and date to a form before submitting it.
Sign on mobile
Draw your signature with a finger on a phone and place it on the page.
| Method | Best for | Note |
|---|---|---|
| Draw | Touchscreens | Use finger or mouse |
| Type | Speed | Signature font |
| Upload | Existing sign | Use a photo |
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