Sign PDF

Illustration showing the steps to sign a PDF: upload, apply a signature, and download

Sign PDF Online

Add a signature to a PDF by drawing or typing it, or by uploading a signature image. Place the mark on the page, then download the signed PDF.

  • Free to use
  • No account
  • Nothing to install
  • No watermark

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How do I sign a PDF online?

Choose a PDF, add a drawn, typed, or uploaded signature, place it, then review and download. The tool adds a visible signature mark; it does not, by itself, create a certificate-based digital signature or guarantee legal acceptance.

How to Sign a PDF Online

Add your signature, check its position, and save a copy for your records.

  1. Select your PDF

    Select the PDF using the file picker or upload area. Check that it is the correct document before continuing.

  2. Create or add your signature

    Draw a signature, type your name, or upload a signature image. Choose a version that is clear and appropriate.

  3. Place and review it

    Place the mark on the intended page. Check that it is legible and does not cover text, dates, or fields.

  4. Download the signed PDF

    Download the finished PDF and open it to confirm the signature appears in the expected place.

What Does the Sign PDF Tool Do?

Add a visible signature mark to a PDF and save a signed PDF copy.

A signature mark you can see

Draw, type, or upload a signature mark, place it on a PDF page, and check that it is legible without obscuring nearby content.

A PDF for review and sharing

Download a signed PDF copy. A visible mark is not the same as a certificate-based signature, identity verification, or a tamper-evident workflow.

Signature options and document notes

Setting What it does Good to know
PDF input The tool is intended for signing PDF documents. Use a PDF version of the document before starting.
Signature style You can draw, type, or upload a signature mark. Choose a clear version that fits the document and remains readable.
Signature placement The mark is placed on a page of the PDF. Check its position and make sure it does not cover important text.

When to Sign a PDF

  • Forms and applications

    Sign a PDF form before returning it if the recipient accepts a visible signature mark.

  • Workplace documents

    Add a visible sign-off to routine paperwork when a certificate-based digital signature is not required.

  • School and education paperwork

    Prepare permission forms or acknowledgements as PDFs, and follow the institution’s signature requirements.

  • Personal records

    Add a signature mark to a personal copy for review or record keeping; retain the unsigned original if needed.

Important Notes Before Signing a PDF

Know what a visible signature does

  • Visible mark, not proof of identity. A drawn, typed, or uploaded mark does not verify who applied it.
  • Legal acceptance varies. Ask the recipient which signing method they accept; requirements can depend on the document and jurisdiction.
  • Not certificate-based. This is a visible mark, not a certificate-based digital signature.
  • Review the saved copy. Open the downloaded PDF and check the signature’s legibility and placement.
  • Keep the unsigned original. Save a source copy in case you need to revise the document.

Troubleshooting Common Signing Problems

Problem Likely cause What to try
The PDF does not upload The file may not be a valid PDF, or the upload may have been interrupted. Check that it is a PDF, then try selecting it again.
The signature is hard to read The mark may be too small or poorly positioned. Resize or reposition it, then check the saved PDF.
The signature is not where expected The mark may have been placed on the wrong page or area. Reopen the PDF and place the mark again.
The signed PDF will not open The download may be incomplete, or the source PDF may be damaged. Download again; if it still fails, test another PDF.
The page is slow or unresponsive A large document or several open tabs may use substantial memory. Wait briefly, close other tabs, or retry in a new page.

How Your Files Are Handled

  • No account, no email. You can use the tools without signing up.
  • The connection is encrypted. PDFZora uses HTTPS.
  • PDFZora does not sell, rent, or trade personal data. Data may still be shared with the companies that help run the site, or disclosed where the law requires it.
  • Processing is largely automated. Access to file content is limited to what is needed to run, maintain, secure, or support the service, or to meet a legal obligation.

Processing method can vary by tool. Some operations may run in the browser, while others may require temporary server-side processing. Retention periods depend on the method used. For the latest information about temporary file storage and deletion, see PDFZora's Data Privacy & Security page.

Frequently Asked Questions

Yes, it is free to use, and you do not need an account to get started.

Select a PDF, add a drawn, typed, or uploaded signature, place it, then review and download the document.

No. This tool adds a visible mark. A certificate-based digital signature may help verify a signer and detect changes, depending on the certificate and validation process. Check the recipient’s requirements.

It depends on the document, recipient, jurisdiction, and signing requirements. Confirm that a visible mark is sufficient before signing.

Yes, the tool offers a signature upload option. Use a clear image and check the downloaded PDF.

Ready to Sign a PDF?

Add a visible signature mark to your document, check the final placement, and save a PDF copy. If you need another PDF task, explore the free tools available on PDFZora.

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