add digital signature to pdf in c downloads

DigiSigner Pro for Mac OS X

3.2.2 download

DigiSigner is a tiny tool to digitally sign PDF files and verify signatures. Use it to secure your PDF documents like invoices and contracts. Design your individual signature appearances as you want. DigiSigner supports smartcards and ...

DigiSigner Kit

2.4.2 download

... a demo mode message is displayed and every signature you create will add a watermark to your document. The Prod version ... on the desktop. FEATURES: - Visible Signature - Invisible Signature - Signature Verification ...

Perfect PDF 8 Premium

8.1 download

Perfect PDF 8 Premium is a powerful software for all tasks concerning the PDF and XPS file formats. Conversion of documents into PDF files, changing of properties, content editing, document commenting, ...