Buying Guide

Which digital signature should you buy for invoicing?

The right certificate depends entirely on your invoice volume and whether you want signing to be automatic.

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Match the certificate to your volume

Don't overbuy a Document Signer setup if you're only signing a few invoices a day, and don't underbuy if you're generating hundreds.

Low volume, Signing DSC

For businesses manually signing a handful of invoices per day.

✓ Individual or Organization Signing DSC on a USB token
✓ Sign each invoice manually in a PDF reader
✓ No software integration needed

High volume, Document Signer DSC

For businesses generating invoices automatically via ERP or billing software.

✓ Delivered as a .pfx file, not a physical token
✓ Integrates into your billing/ERP system via API
✓ Signs invoices automatically, no manual step

Not sure which fits your business?

Tell us your monthly invoice volume and current billing setup, and we'll recommend the right certificate.

Honest recommendation based on your actual volume

Document Signer setup support if you need automation

Standard Signing DSC if manual signing is enough

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Frequently asked questions

Yes, many businesses start manual and switch to automated Document Signer certificates as volume grows. There's no penalty for starting simple.

Generally yes, since it's built for a different use case (automated/bulk signing), use our pricing calculator to compare exact costs.

Not a separate certificate type, a standard Signing DSC (or Document Signer for bulk) authenticates your GST e-invoicing the same way it does other filings.