Digital Signature Software for Government Tenders

PDF digital signing software lets you sign PDF documents using a Digital Signature Certificate (DSC). Your signature is legally binding, timestamps the document, and proves you signed it. PDFSign uses USB tokens or software certificates to sign PDFs without uploading them anywhere.

Open PDFSign, select your PDF files, choose your DSC from the dropdown, and click Sign. For batch signing, select multiple PDFs at once. PDFSign automatically positions signatures and creates compliant signed documents in seconds.

Yes. PDFSign works with all major USB token providers: ePass, HyperPKI, Proxkey, SafeNet, Thales, and more. Your DSC stays secure on the token. PDFSign only reads the certificate data needed to sign documents.

Absolutely. That's the main advantage. Select 10, 50, 100, or 500 PDFs. Set your signing preferences once. PDFSign signs all of them automatically. Perfect for tender submissions with dozens of documents.

Yes, PDFSign supports Class 3 Digital Signature Certificates from all Indian government-recognized CAs. Class 3 is the standard for tender documents, government contracts, and legal agreements.

Yes. PDFSign creates PDFs that are accepted on GeM, CPPP, CPP, all state tender portals, Railway tenders, Defence procurement, and every government platform that accepts digitally signed documents.

Yes. PDFSign works 100% offline. Your documents never leave your computer. No cloud uploads. No internet required (except for optional RFC 3161 timestamps from certified authorities).

Yes. PDFSign lets you manually position signatures on any page, or use automatic placement. You can save your signature position for future documents, making batch signing even faster.

Yes. PDFSign can sign PDFs even if they have restrictions or passwords (if you have permission to modify them). This is useful for tender documents with editing restrictions.

No. PDFSign works independently. You don't need Adobe Acrobat, Adobe Reader, Java, or any other software. It's a standalone application.

PDFSign includes RFC 3161 timestamps. These are legally compliant, time-certified marks that prove exactly when your document was signed. Required by most government procurement portals.

No. PDFSign is a one-time purchase. No monthly or annual subscriptions. Pay once, use forever on one computer.

Check our website for current pricing. We offer a free trial so you can test PDFSign with your own documents before buying. Most tender professionals save the cost in a single month.

PDFSign licenses are per-computer. If you need multiple computers, contact our sales team for volume pricing and multi-license options.

100% secure. PDFSign processes everything locally on your computer. No data is sent to servers. Your confidential tender documents never leave your network. We don't store, log, or track any information.

PDFSign works with standard PDF files (.pdf). It works with PDFs of any origin—scanned documents, exported from Word/Excel, or native PDFs. Batch processing works on any PDF.

Yes. We offer email support and help documents. We also provide video tutorials for common workflows like batch signing and government tender submissions.

When your DSC expires, you'll need to renew it with your CA (Certifying Authority). PDFSign will automatically detect your new certificate once you replace it on your USB token.

Yes. PDFSign uses standard PDF signing formats (PKCS#7) and RFC 3161 timestamps. These are certified standards that government systems depend on. As long as digital signatures are required for tenders, PDFSign will work.