How PDF signing works
Sign PDF lets you add a visible handwritten-style signature to a document without uploading it. You can draw, type, or upload a signature, place it on a real PDF page preview, and save the signed file locally on your device.
When to use this tool
This tool is useful when you need to quickly sign a PDF online with a visible signature and keep the document private on your own device.
- Sign forms, letters, agreements, and approval documents.
- Add a handwritten-style signature to business or personal PDFs.
- Place initials or signatures on one or more pages before sending the file back.
- Review signature placement visually before saving the signed copy.
Preparing your document before signing?
Remove unnecessary pages with a PDF page remover,
or combine multiple files into one with a PDF merge tool.
After signing, add a visible stamp or label with a PDF watermark tool.
Step-by-step: sign a PDF
Signing a PDF takes just a few steps:
- Add your PDF. Drag and drop the file into the box above, or click to browse.
- Choose how to sign. Type, Draw, or Upload.
- Create and place it. Use the signature button in the selected mode and it will be placed on the current page.
- Adjust placement. Drag and resize it in the preview if needed.
- Sign PDF. Save the signed document once placement looks right.
Signature methods
- Type: best when you want a fast signature-style name with different handwritten looks.
- Draw: best when you want a more natural handwritten result.
- Upload: use a saved signature image such as PNG, JPG, JPEG, or WebP if you already have one.
Placing the signature
After you create a signature, it is placed on the current PDF preview page. You can drag it into position, resize it, move between pages, add more than one signature, and remove individual placed signatures before saving the final PDF.
Privacy, limits and how this tool treats your files
FileYoga is built around a simple rule: your files stay with you. PDF signing runs locally in your browser, so your document and signature never leave your device.
Local-only processing
The signing happens in your browser on your device. Your file is not uploaded, and the signed PDF is generated on your side.
No hidden copies
When you clear the file or close the tab, the tool stops using your PDF and signature data and does not save copies on a server.
No artificial limits
No paywalls or quotas. The only limits come from your device’s memory and your browser.
No account required
Use the tool without signing up. Open the page, sign your PDF, save the result, and leave when you are done.
Tips for best results
- Use a stylus or touch screen if you want the most natural drawn signature.
- Transparent PNG usually works best when uploading a signature image.
- Zoom in before adjusting placement for better accuracy.
- Review every signed page before exporting, especially if you added multiple signatures or initials.
- Compress the PDF afterward if you need a smaller signed file.
Troubleshooting
- Sign PDF button does nothing: add a PDF first, then place at least one signature on a page before saving.
- Signature looks too small or too large: change Signature size or resize it directly in the preview.
- Signature looks blurry: use a cleaner uploaded image, a transparent PNG, or redraw it more clearly.
- Preview is too zoomed in or too small: change the preview zoom setting for easier placement.
- Uploaded signature looks messy on the page: crop extra background space from the image before uploading it.
- Error on the PDF: the file may be damaged, encrypted, or unusually complex — re-save it in a desktop PDF app and try again.
Frequently asked questions
Yes. You can draw a signature with a mouse, trackpad, stylus, or touch and place it on the PDF as a visible signature.
Yes. You can upload a signature image such as PNG, JPG, JPEG, or WebP. A transparent PNG usually gives the cleanest result.
Yes. After placing it, you can drag the signature to a new position and resize it in the preview before saving the final PDF.
Yes. You can place multiple visible signatures or initials on one page or across different pages before saving the signed PDF.
Yes. Each placed signature can be selected and removed individually without clearing the whole page.
No. This tool adds a visible signature to the PDF page. It does not create a certificate-based digital signature or identity verification workflow.
Usually yes. The signed PDF should open in standard PDF apps, but very complex forms or advanced interactive elements may behave differently after editing.
No. The signing runs locally in your browser on your device. Your PDF and signature are not uploaded to FileYoga servers.