Sign PDF Documents with DigiSigner!

Need to Sign PDF File? Want to Create Digital Signature?
Do it with DigiSigner in only two minutes.
Place signature wherever you want using your mouse.
No printing or scanning is necessary.
Our signatures cryptographically protect your files.
And are Adobe Reader compatible.
Use DigiSigner Free or Pro on PC or Mac!
Buy DigiSigner Download DigiSigner
DigiSigner online

DigiSigner online

Start DigiSigner right now and sign your PDF documents online. No need to install anything, no registration required. And it is FREE.
DigiSigner Kit

DigiSigner Kit

Do you want to embed DigiSigner functionality in your desktop applications or applets? Then take a look at our DigiSigner Kit.

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Digital signatures using certificates
Signatures using certificates
Create digital signatures using standard X.509 certificates. Signing your PDFs with DigiSigner cryptographically protects your documents and not just embeds pictures in your files.
Completely secure
Secure PDF Documents
Digital signatures protect your PDF files from tampering and ensure your identity as the signer. Add digital signatures to your PDF documents and show to your customers that you care abour security.
DigiSigner News
23 January 2012
We released new DigiSigner version 2.3.3.

In this version we improved our PDF display functionality by fixing several problems. Some kinds documents are displayed much better now.

In our DigiSigner Pro version we also implemented the option to include certificate revocation information in the signature.

5 January 2012
The first online version of DigiSigner was released. From now on our users can sign PDF documents in their browsers. And it is completely for free. Start it now!

22 December 2011
The popular website for downloading software CNET Download.com reviewed DigiSigner and found it excelent.

20 December 2011
We released new DigiSigner version 2.3.2.

In this version we fixed some text visualization errors and problems with attaching of documents to emails.

Also DigiSigner includes now a short 5 minutes tutorial how to quickly sign a PDF document.
Simple and intuitive
Simple and intuitive
We know some people think digital signatures are complicated. But many who tried DigiSigner told us it was not complicated at all. We want to be the simplest digital signature tool in the world.
Adobe Reader compatibility
Adobe Reader interoperability
Signatures produced with DigiSigner are visible and verifiable in standard Adobe Reader tool. Visible signatures created with Adobe Reader or other applications can be also opened and verified using DigiSigner.
Signature verification
Signature verification
DigiSigner verifies digital signatures for you to ensure that your document was not changed or damaged. It is as easy as clicking on them. DigiSigner informs you who signed the document and reports other important details.
Support for smartcards
Support for smartcards
You can use standard smartcards and USB tokens (a.k.a. PKCS#11 tokens) to digitally sign PDFs. It's very easy to add them to DigiSigner. Of course DigiSigner supports also standard PFX file key stores (a.k.a PKCS#12).
Support for Windows key store
Support for Windows key store
Without any configuration DigiSigner recognizes and shows you the certificates from your Windows key store. Certificates from smartcards that are recognized by Windows are also automatically shown.
Powered by Java technology
Powered by Java technology
DigiSigner is implemented with Java technology and therefore runs everywhere Java runs. You only need Java to be installed on your computer (1.6 or above). Windows installer checks it for you and automatically installs Java if required.