How to Sign a PDF Online Free (Step-by-Step Guide)
Updated April 2, 2026 · 5 min read
Need to sign a PDF quickly? You don't need to print it, sign it with a pen, and scan it back in. You can sign any PDF online for free in under 60 seconds using SignBolt. No downloads, no account, no fees.
What You Need
- A PDF document you need to sign
- Any device with a web browser (computer, phone, or tablet)
- That's it. Seriously.
Step 1: Upload Your PDF
Go to signbolt.store/sign. You'll see a large upload area. Either:
- Drag and drop your PDF file directly onto the page
- Click the upload area to browse your files
SignBolt accepts PDF files, Word documents (.doc, .docx), and images (PNG, JPG) up to 25MB.
Step 2: Create Your Signature
You have three options for creating your signature:
- Draw — Use your mouse (desktop) or finger (mobile) to draw your signature on the canvas. This looks the most like a real signature.
- Type — Type your full name and it will be rendered in a handwriting font. Quick and professional-looking.
- Upload — If you already have a signature image (like a scan of your real signature), upload it as a PNG or JPG.
Step 3: Place Your Signature
After creating your signature, you'll see your document with a highlighted signature field. Click on it to place your signature. The date and audit trail information are automatically added.
Step 4: Download Your Signed PDF
Click “Finalize & Download” and your signed PDF will be ready to download instantly. The signed document includes:
- Your signature embedded in the PDF
- A timestamp of when it was signed
- An audit trail ID for verification
That's it. Four steps, under 60 seconds, completely free.
Is This Legally Binding?
Yes. Electronic signatures are legally binding in the US under the ESIGN Act and UETA, and in the EU under eIDAS. SignBolt creates a complete audit trail with timestamps and IP logging for every signature.
What If I Need Multiple People to Sign?
The free tier is perfect for signing documents yourself. If you need to send documents to others for their signature, create a free account (still free — 3 documents per month) to unlock multi-party signing. For higher volumes, check out our Pro plan at $8/month.
Common Use Cases
- Freelance contracts — Sign client agreements before starting work (guide)
- Lease agreements — Sign your apartment lease without visiting the office (guide)
- NDAs — Sign non-disclosure agreements before business meetings
- Tax forms — Sign W-9s, 1099s, and other tax documents
- Employment paperwork — Sign offer letters and onboarding docs (guide)