Guide

How to sign a PDF online

Fill in a PDF form and add your signature by drawing it, typing it or uploading a photo of it.

Published · By the Docshar team

Rental agreements, consent forms, declarations and joining letters often arrive as PDFs that need a signature. Instead of printing, signing and scanning, you can sign the PDF on your phone or computer. Docshar's Fill & Sign tool fills in form fields, and the PDF Editor's Signature tool places your signature anywhere on the page.

Docshar processes your file in your browser, so it is not uploaded to our servers. Files can be up to 10 MB each.

Step by step

  1. Open Fill & Sign. Go to Docshar Fill & Sign and choose your PDF.
  2. Fill in the form, if it has fields. If the PDF has fillable fields, Docshar lists them. Type your answers, then click Fill & download. Tick Lock the answers (flatten the form) if the answers should no longer be changeable.
  3. Open the PDF Editor to sign. If the PDF has no fields, click Open in PDF Editor to sign. If you just filled a form, click Edit in PDF Editor on the result.
  4. Create your signature. Choose the Signature tool (S). Draw it with your finger or mouse, Type your name in a handwriting font, or Upload a photo of your signature on white paper. Click Insert signature.
  5. Place it and download. Drag the signature onto the signature line, resize it, and click Download PDF.

Electronic signature or digital signature?

Docshar adds an image of your signature to the page. This is fine for many everyday documents, but it is not a certificate-based digital signature. Some processes, such as certain tax, company or tender filings, ask for a Digital Signature Certificate (DSC) or Aadhaar-based eSign instead. If you are unsure what a document needs, ask the organisation that requested it.

Tips

Frequently asked questions

Is signing a PDF on Docshar free?

Yes. Filling forms and adding signatures is free, with no watermark and no account.

Can I sign a PDF on my phone?

Yes. Open the editor in your mobile browser, choose Signature and draw it with your finger.

Is an image signature legally valid?

It depends on the document and who receives it. Many everyday agreements accept it, but some official filings require a DSC or eSign. Check with the recipient if in doubt.

Can AI fill the form for me?

On the Fill & Sign page, "Fill with AI" can fill fields from a short description, such as your name and city. It sends only what you type and the field names to Google Gemini, after asking for your consent.