Why can't I sign my PDF file?

In order for you to sign over the top of another persons' signature, you would need to have blank signature fields (one for you AND another user) already placed in the PDF before the first signature is signed.

Why can't I fill and sign my PDF?

Make sure that the security settings allow form filling. (See File > Properties > Security.) Sometimes form creators forget to convert their PDFs to interactive forms, or they intentionally design a form you can only fill in by hand. If you can't type in the form fields, then the fields are probably not interactive.

How do I digitally sign a PDF with a stamp?

How to Create a Signature Stamp in Acrobat Capture an image of your signature. You can do this by: Find or move the image to your computer. Use Slide Deck software to stage signature image. Screencapture the image. Open PDF Software (Acrobat) Select 'Comment' Select "Create Custom Stamp" Select the Image to be used.

How do I put a signature and stamp on a PDF?

How to Create a Signature Stamp in Acrobat Capture an image of your signature. You can do this by: Find or move the image to your computer. Use Slide Deck software to stage signature image. Screencapture the image. Open PDF Software (Acrobat) Select 'Comment' Select "Create Custom Stamp" Select the Image to be used.

How do I sign and date a PDF file?

Sign using Acrobat/Reader desktop application In Acrobat or Acrobat Reader, click Home. Double-click the agreement with the Waiting For You status, or select the agreement, and click Sign in the right-pane. Click in the fields and enter any requested information. Click the signature field. Click Click To Sign.

How do I add a date stamp to a PDF document?

Here's the process step-by-step: Right-click your PDF in File Explorer and click “Make Secure PDF”. In the “View Watermarks” and “Print Watermarks” tabs, tick “Add Text Watermark” and enter %DateTime% in the text box. Apply any other controls and press “Publish”. Open your PDF to view the date/time stamp.

How to sign using smallpdf?

How to electronically sign a PDF online for free Go to the Smallpdf eSign tool. Drag & Drop your PDF in the toolbox. Click on “Your Signature” on the right. Draw your signature with your mouse or stylus. You can also upload a photo of your signature. Place the signature onto the document.

How to electronically sign a PDF with date and time stamp?

Time stamp signatures of a PDF document Select Security > Sign and Certify > Time Stamp. The Time Stamp Server dialog box lists all services you have selected. Click Add to place a new service. Select one to be used for the current document.

Home
Functionality index

Switch from SmallPDF to pdfFiller for a Sign Documents with Stamp Solution For Free

Drop document here to upload

Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT

Based on 12500+ reviews

Last updated on Dec 27, 2025

Document creation is just the beginning

Learn more about security

Create and edit documents with a trusted solution

Try easy-to-use tools for all your document management needs.

Upload your document

pdfFiller scores top ratings on review platforms

Some of the fill ins didn't exactly fill in right, but this was my first time using PDF Filler, so maybe it is just part of the learning curve for me. Thanks.

Catherine S

Everything good so far This company provides several very useful products/services, including being able to create a fillable document, convert from one format to another, and the legal forms. The subscription also seems reasonable. I'm still learning how to use the application but everything looks good so far.

Mike Goulding

I'm very pleased with the PDF-filler… I'm very pleased with the PDF-filler system. I was able to find my PDF files with no problem... Thank you, Mr. James R Robinson

JAMES R ROBINSON

Very helpful website that is also… Very helpful website that is also realistic in allowing its customers a reasonable free trial. Very efficient and well thought through.

Abigail Casson

so far everything is good to use and very easy, I need to explore more but I do not have time. A little confused with the folders but I will learn very soon.

Edgar B

The PDF Filler worked great The PDF Filler worked great. I only used it once and since I had no occasion to use it again, I cancelled. There were no issues with the cancellation. The charge was removed from my credit card. I am very happy with this product. I will order it again when I need it.

Melinda F Maybee

Show more Show less

Watch pdfFiller eSignatures in action

Check out a quick video tutorial that shows how to create and place your signature or send a document for signing.

Switch from SmallPDF to pdfFiller for a Sign Documents with Stamp Solution For Free

Document creation is just the beginning

Create and edit documents with a trusted solution

pdfFiller scores top ratings on review platforms

Watch pdfFiller eSignatures in action

Related features

List of extra features

Create and edit documents with a trusted solution