Add Signature to PDF
Draw, type or upload a signature and place it freely on your PDF.
Drag & drop your PDF or click to select
Click empty area to place · Click item to select · Drag to move · Corner to resize
PDFinsert does not guarantee that signatures added with this tool are legally binding. Use is at your own discretion.
PNG or JPG (transparent background recommended)
Target: page 1 · Viewing: page 1
1 click = one page · Double click = multi-select
How to use Add Signature to PDF
- Everything runs entirely in your browser — your files never leave your device.
- Use a PNG with a transparent background for the cleanest signature result.
- You can draw smoothly with your mouse or finger on mobile devices.
- Adjust the Opacity selector to blend the signature naturally with the document.
- Drawings are automatically cropped so you can resize them freely.
- Use the page chips to apply the same signature to multiple pages at once.
- All placed items stay visible and editable until you stamp the final PDF.
Your files never leave your device. All signature drawing and placement runs completely inside your browser.
Draw your signature by hand, type your name using custom fonts, or upload an image file seamlessly.
Click to place, drag to position freely, and resize your signature proportionally with a live visual preview.
Draw with your mouse or finger, or upload a PNG/JPG of your signature or stamp in seconds.
Apply your signature across all pages or only on the specific pages you choose.
No accounts, hidden subscriptions, or file quotas. Sign and download your updated documents instantly.
Common Uses
Quick ideas to get the most out of Add Signature to PDF
- Employment contracts — Sign job offers, remote work agreements, and onboarding paperwork quickly from any device.
- Invoices & receipts — Authorize billing documents, purchase orders, and financial statements with a professional signature.
- Real estate agreements — Execute leases, rental applications, and property disclosures without printing physical copies.
- Legal affidavits — Sign declarations, consent forms, and official legal documents securely and directly in your browser.
- Business proposals — Validate quotes, service level agreements (SLAs), and project scopes for immediate client approval.
- Tax & government forms — Sign official filings, applications, and compliance documents before portal uploads.
- NDA & confidentiality — Execute non-disclosure agreements instantly to protect intellectual property before meetings.
- Permission slips & school forms — Sign authorization documents, medical releases, and educational forms on the go.
Frequently Asked Questions (FAQ)
Everything you need to know about adding signatures and stamps to PDFs
How do I add a signature or stamp to a PDF?
Upload your PDF, then choose how to create your signature: draw it freehand, type your name, or upload a PNG/JPG image. Position it by dragging on the preview, adjust the size, select which pages to apply it to, and click Stamp All to PDF.
What are the three ways to create a signature?
The tool offers three methods:
- Draw — Use your mouse or finger to draw a handwritten signature
- Type — Type your name or initials with custom fonts and colors
- Upload — Upload a PNG or JPG of your signature or stamp
Can I add multiple signatures or stamps to the same PDF?
Yes. After positioning your first signature, save it and add another. You can place multiple signatures or stamps on different pages or positions before downloading the final PDF.
Can I choose which pages get the signature?
Yes. Apply the signature to all pages or only to specific pages you select.
How do I resize and position my signature?
Drag the signature to move it, use the resize handle to scale it, or use the Smaller / Larger buttons for quick adjustments.
Can I adjust the opacity of the signature?
Yes. Choose opacity from 40% to 100% to make the signature solid or more like a subtle watermark.
What image formats are supported?
PNG (best with transparent background), JPG/JPEG, and WebP are supported.
What fonts and colors can I use for typed signatures?
You can use fonts like Georgia, Arial, or Courier New, different sizes, and colors such as black, blue, red, or green.
Are my documents and signatures secure?
Yes. Everything is processed 100% in your browser. Your PDF and signature never leave your device.
Is this a legally binding electronic signature?
This tool adds a visual signature or stamp to your PDF. For formal e-signature legal requirements, check the laws in your country. For everyday documents, contracts, and forms, a clear visual signature is widely accepted.
Is there a file size limit?
We recommend PDFs under 50 MB and signature images under 5 MB for best performance, especially on mobile.
Does it work on mobile phones and tablets?
Yes. It works on modern mobile browsers (Chrome, Safari, Firefox and Edge) on Android and iOS. You can draw with your finger and upload images from your gallery.
Ready to sign your PDF documents?
Upload your PDF and add professional signatures or stamps in seconds.
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