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Sign PDF

Places a visible text signature on the last page. It is a quick browser tool for marking approval, authorship, or review status.

Processing

Runs in your browser. The file and result are not sent to Utilio servers.

How Utilio handles dataWhy files stay on your devicePrivacy Policy

Sign PDF

Place a visible text signature on the last page.

Settings

Result

Choose files and run the tool to see the result.

Files
0
output files
0

What to open next

Related tools and guides for the same job.

Compress PDFSend contracts, scans, reports, or coursework under a strict file-size limit.Watermark PDFMark a document as Draft, Confidential, Sample, or Internal Use.Split PDFSend one chapter, form, receipt, or signed page without exposing the full PDF.Add Page NumbersNumber appendices, scan packets, or review drafts before sending them out.Protect PDFAdd a password before emailing personal or internal documents.Merge PDFJoin a cover sheet, contract, appendices, and signed scan into one handoff file.

What Sign PDF does

Use Sign PDF when you need to add a visible name or approval note to a PDF before returning it.

When to use it

  • Add a visible name or approval note to a PDF before returning it.
  • Mark a reviewed document without opening a desktop PDF editor.
  • Create a lightweight signed copy for internal review.

How to use it

  1. Add the PDF and enter the signature text.
  2. Choose placement and size if the tool exposes those controls.
  3. Export the file and check that the signature appears on the intended page.

What to check

  • This is a visible mark, not a cryptographic digital signature.
  • Use a qualified signing tool when legal digital signature validation is required.

Data, formats, and limits

What stays on your device and what is sent

Runs in your browser. The file and result are not sent to Utilio servers.

Supported formats

Supported: PDF. Not supported: DOCX, XLSX, PPTX, JPG, PNG, HEIC, ZIP.

File limits and browser requirements

  • Up to 100 MB per PDF
  • Runs in browser memory, so very large, scanned, or image-heavy PDFs can be slow or fail on low-memory devices.
  • Encrypted or damaged PDFs may not open unless the specific tool supports that workflow.

Known limits

  • Runs in browser memory, so very large, scanned, or image-heavy PDFs can be slow or fail on low-memory devices.
  • Encrypted or damaged PDFs may not open unless the specific tool supports that workflow.

Troubleshooting

  • If the PDF does not open or processing stops, try a smaller file or close extra tabs to free browser memory.
  • If the file is password-protected or damaged, first confirm it opens in a regular PDF viewer.
  • If the file is in an unsupported format (DOCX, XLSX, PPTX, JPG, PNG, HEIC, ZIP), convert it into a supported PDF first.
All PDF toolsPrivacy PolicyHow Utilio handles data

Common questions

What does Utilio receive?

Runs in your browser. The file and result are not sent to Utilio servers.

What is it useful for?

Use it when you need to add a visible name or approval note to a PDF before returning it. Start by adding the PDF and enter the signature text.

Do I need an account?

No. You can use this tool without creating an account.

Can I use it on a phone?

Yes. For large files, complex previews, or careful review, a browser on a computer is usually more comfortable.

How do I get a reliable result?

Add the PDF and enter the signature text. Then choose placement and size if the tool exposes those controls. This is a visible mark, not a cryptographic digital signature.

Which formats are supported?

Sign PDF supports PDF. It does not support DOCX, XLSX, PPTX, JPG, PNG, HEIC, ZIP.

What file size works best?

Up to 100 MB per PDF. Browser memory and device speed can still affect large files.

Why did I not get the result I expected?

Runs in browser memory, so very large, scanned, or image-heavy PDFs can be slow or fail on low-memory devices. If the result still looks wrong, try a smaller or simpler input and review the output before using it.

Does Utilio use my input or results to train AI?

No. Utilio does not use files, pasted text, settings, generated values, or results from this tool to train AI models.