Want to add a picture of your handwritten signature to a PDF? We’ll show you how to create a signature image and insert it into your document.
Sometimes typing your name into a signature box doesn’t feel official enough. You might prefer using a photo of your real handwritten signature. That way, your PDF looks more personal, authentic, and professional.
You can create a clean signature image once and reuse it for any PDF. Let’s walk you through how to do it step-by-step.
How to Add a Signature Image to a PDF: Step-by-Step
The simplest way to insert a signature image is with Smallpdf’s Edit PDF. It works in your browser and supports uploads from your device or cloud storage.
Here’s how:
Step 1: Go to Edit PDF
Open Edit PDF.
Step 2: Upload Your PDF
Drag your file into the upload box. You can also choose from Google Drive, Dropbox, or OneDrive.
Step 3: Insert Your Signature Image
Click Add Image and select the signature file (PNG or JPG). PNG works best if you want a transparent background.
Step 4: Position and Resize
Drag your signature into place — at the bottom of a form, a contract, or wherever you need it. Resize by pulling the corners until it looks natural.
Step 5: Save Your Signed PDF
Click Export to download the updated file or send it back to cloud storage.
Add a Signature Image to a PDF
This method creates a permanent signature image inside the PDF, so you can share it immediately.
How to Create a Signature Image for PDF
Before you can insert your signature, you need a clean image file of it. Here’s the easiest way to create a signature image for a PDF: 1. Write your signature on white paper with a dark pen. 2. Take a photo or scan it using your phone’s camera or a scanner. 3. Crop the image so only your signature remains. 4. Save as PNG for best results (transparent background avoids white boxes around the signature).
Tip -> If you use the Smallpdf mobile app, you can capture and crop your signature directly, saving it as a ready-to-use image.
Other Ways to Insert a Signature Image in a PDF
Sometimes you don’t want to rely on one method. Here are alternatives:
Use Preview on Mac
- Open the PDF in Preview.
- Go to Markup Toolbar > Add Image.
- Insert your saved signature picture and drag it into place.
- Save the file.
Use Microsoft Word (then Export as PDF)
- Open Word and insert your PDF.
- Add your saved signature image as a picture.
- Once positioned, go to File > Save As > PDF.
This approach works well if you already edit documents in Word and want a quick way to add your signature image before turning it back into a PDF.
Why Use a Signature Image Instead of Digital Signing?
Digital signatures (cryptographic certificates) are more secure for legal documents, but sometimes an image signature is enough. For example:
- Signing a school permission slip
- Approving internal work documents
- Sending invoices with a personal touch
For sensitive contracts, we recommend Sign PDF, which creates a secure digital signature. But for quick approvals, an image signature is fast and practical.
Can You Add a Signature Image to a PDF for Free?
Yes. Smallpdf lets you insert images into PDFs online at no cost. You can upload, add your signature, and save the signed document instantly.
If you need advanced options, like reusable signatures or sending files for others to sign, you can try Sign PDF.
FAQs
1. Can I add a picture of a signature to a PDF?
Yes. Upload your PDF to Smallpdf’s Edit PDF, select Add Image, and place your signature picture anywhere in the file.
2. How do I upload a picture of my signature?
Save your signature as a PNG or JPG. In Edit PDF, click Add Image and upload the file from your device or cloud storage.
3. How to add image of signature to PDF online?
Go to Smallpdf’s Edit PDF, upload your document, and insert your saved signature image. You can then download or share the signed file.
4. How to add image of signature to PDF free?
Smallpdf lets you add signature images without cost. Just use Edit PDF in your browser and save the updated file.
