A simple, guided step designed to get straight to the result.
Sign PDF
Add your signature to a PDF document without printing, scanning or installing software.
Drop your file here
or select the document from your device
PDF file · 100 MB maximum Local processingFile is not uploadedNo installation
5 free operations per day · All active tools included
HOW IT WORKSSign in moments,
Sign in moments,
in three steps.
A simple, guided step designed to get straight to the result.
A simple, guided step designed to get straight to the result.
PRIVACY
Our commitment Your document remains your document.
Local tools process the file directly in your browser without sending it to our server.
Quick answer
Sign PDF: Sign in moments
Sign PDF helps place an electronic signature or signature image on a document for routine approvals. Users must distinguish a visual signature from a cryptographic digital signature, because identity evidence, consent, integrity, audit records, and legal acceptance vary by workflow and jurisdiction.
Reviewed by the PlusConvert Editorial Team · Updated August 24, 2026When this tool is useful
- Acknowledging a routine form or internal approval
- Adding a visible signature to a document whose process allows electronic signing
- Preparing a signed copy for a recipient while retaining the unsigned master
Professional quality
- Confirm the correct signer, final document version, required fields, and signature placement.
- Determine whether the transaction requires identity verification, timestamps, witnesses, or an audit trail.
- Open the signed result independently and preserve associated consent or approval records.
International and regional use
Document conventions vary by country and language. Check page size, reading direction, dates, numbers, fonts, accessibility, privacy, and retention rules. PlusConvert is a global online service and does not claim a physical local office or map listing.
E-commerce and business
Keep product names, identifiers, prices, currencies, and policy links consistent across PDF catalogs, product pages, feeds, invoices, and orders. The transactional page should remain the source of truth for stock and checkout.
What Sign PDF does not solve
A pasted signature image alone does not prove identity or prevent later alteration. Legal requirements differ by country and transaction type. Altering an already digitally signed PDF can invalidate existing signatures.
Method and trust
Each PlusConvert page explains its purpose, accepted formats, workflow, limits, and safety checks. We publish no invented ratings or guarantees. High-risk legal, medical, financial, or accessibility documents require qualified review.
FAQ
Questions about this PDF tool
Is an electronic signature legally valid?
Validity depends on jurisdiction, transaction, consent, identity evidence, and records. Obtain legal guidance for important agreements.
What is the difference between an e-signature and a digital signature?
An e-signature expresses intent; a digital signature can also use certificates and cryptography to provide integrity evidence.
Can I sign a protected PDF?
Only if you are authorized and the document permissions allow signing or are lawfully unlocked first.
EXPERIENCE IN MOTIONSign PDF,
Sign PDF,
made simple.
A visual experience designed to guide you clearly from the original document to the finished result.
