PixoateSign PDF Online - Add Signature to PDF Free, In-Browser
Draw, type or upload a signature, then click anywhere on the PDF to place it. Multiple signatures per page, multiple pages. Runs entirely in your browser — your document never leaves.
Drop a PDF you want to sign
PDF up to 50 MB
Done with Sign PDF? Try these next
Hand-picked tools that pair well with Sign PDF. Keep going without losing your file.
Annotate PDF
Add text notes and color highlights to any PDF — click to place, choose color and size, export as PDF. Free, no signup, no watermark, no upload.
Try it nowWatermark PDF
Stamp CONFIDENTIAL, DRAFT or any text diagonally across every PDF page, with opacity, font, rotation and color controls. Free, no signup, no upload — runs in your browser.
Try it nowPDF Password
Lock a PDF with an AES-128 password, or remove a password from a PDF you can already open. Free, no signup — your file never leaves your browser, no upload.
Try it nowMerge PDF
Combine two or more PDF files into one, drag to reorder. Free with no daily task limit, no signup and no watermark — files never upload, everything runs in your browser.
Try it nowFill PDF Forms
Detect AcroForm fields in any PDF (text, checkbox, dropdown, radio, list), fill them in, optionally flatten and download. Free, no signup, no upload — runs in your browser.
Try it nowCompress PDF
Shrink PDF file size for email and form uploads with quality presets. Free with no daily task limit, no signup and no watermark — runs entirely in your browser, no upload.
Try it nowFrequently Asked Questions
Upload the PDF, type a stylised signature, draw one with your mouse or finger, or upload a transparent PNG of your scanned signature. Drag it onto the signature field, add initials in the margins, then download a signed PDF that opens cleanly in every reader.
usageIn most jurisdictions yes — the US ESIGN Act, EU eIDAS, UK Electronic Communications Act and India IT Act all recognise simple electronic signatures for routine contracts (employment offers, NDAs, freelance agreements, invoices). High-value transactions may require qualified e-signatures.
officialYes. Add signature fields for each party, save the partially-signed PDF, send it to the next signer and have them add their signature in their assigned slot. The audit trail (who signed when) is embedded in the PDF metadata.
featuresDrop a signature, initials and date stamp from the toolbar onto any page. The date stamp uses today's date by default but can be overridden. Flatten the PDF on download so recipients cannot modify the signature placement.
featuresSigning happens locally in your browser, so the document and your signature image never reach a server. That makes the tool safe for employment contracts, real-estate paperwork, medical consent forms and legal agreements.
privacyYes. Toggle "Flatten and lock on download" and signatures, initials and the date stamp are baked into the page. Combined with the optional password-protect step, the document becomes tamper-evident.
featuresHow Sign PDF helps you get it done
Real problems it solves every day — for businesses, creators, and everyday tasks. Find the use case that fits you and start in seconds.
Freelance Contract & SOW Signing
Freelancers and consultants sign client contracts, statements of work and NDAs in the browser without paying for a DocuSign subscription for every quarterly engagement
Real Estate & Lease Agreement Signing
Tenants, landlords and buyers sign lease agreements, purchase contracts and mortgage paperwork digitally — flatten on download so signatures cannot be moved after the fact
Employee Onboarding & HR Paperwork
New hires sign offer letters, NDAs, direct-deposit authorisations and benefits enrolment PDFs on day one without printing, scanning and emailing back
Vendor Agreements & Purchase Orders
Operations and procurement teams sign vendor agreements, purchase orders and master service agreements on the fly when DocuSign isn't already set up with the counterparty
Medical Consent & Patient Forms
Patients sign telehealth consent forms, HIPAA authorisations and treatment agreements digitally — fully in the browser so no PHI is uploaded to a third-party signing service
School Permission Slips & Parent Forms
Parents sign field-trip permission slips, school enrolment paperwork and after-school registration forms from their phone, then email the signed PDF back to the teacher