26 Oct 2026 · TrustList Editorial
When a file format moves faster than its standard
Microsoft has revised its notes on how Office extends ISO/IEC 29500 57 times since 2009; the core standard text dates from 2016. Why…
4 of 8 digital signature software ranked on evidence in the Q4 2026 edition.
Between them, the 8 digital signature software on this page cover task progress tracking (7) and audit trail (7). 8 of them have written a profile you can read before you get in touch.
TrustList ranking
Q4 2026 edition
4 of 8 digital signature software ranked on evidence held on 12 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.
Positions are fixed for the quarter; the next edition is due in January 2027.

Task Progress Tracking · Customizable Templates · Mobile Signature
Secured Signing is a cloud-based service for signing and notarising documents online.
Why #1 (shared): No major incidents in 90 days (status page)
Not yet on record: client reviews, vetting.

Task Progress Tracking · Customizable Templates · Mobile Signature
Citrix RightSignature is electronic signature software for businesses that send contracts and other documents to clients.
Why #1 (shared): No major incidents in 90 days (status page)
Not yet on record: client reviews, vetting.

Task Progress Tracking · Customizable Templates · Mobile Signature
KeepSolid Sign is electronic signature software for signing documents and collecting other people's signatures. It comes from KeepSolid Inc.
Why #3 (shared): 24/7 support, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Customizable Templates · Mobile Signature · Multi-Party Signing
PDFco trades as PDF.co, a provider of a REST web API for working with PDF files. Its aim is to cut manual document work for developers and for teams building automated workflows.
Why #3 (shared): SOC 2 Type II, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Task Progress Tracking · Customizable Templates · Mobile Signature
DigiSigner is a cloud-based digital signature tool for businesses that need to sign contracts and secure invoices.

Task Progress Tracking · Customizable Templates · Mobile Signature
E-Sign provides electronic signature software for sending and signing agreements from any device.

Task Progress Tracking · Customizable Templates · Mobile Signature
Signable is electronic signature software. Users upload a document or template, add signers and mark where they sign, and each signer gets an emailed link that opens on any device…

Task Progress Tracking · Customizable Templates · Mobile Signature
HelloSign, now branded Dropbox Sign, is an electronic signature service for sending, receiving and managing legally binding agreements.
For vendors
The order is earned on evidence: client reviews, vetting, awards and the facts a business states on its own website, which we read and date. Nobody can pay to move up. Add reviews or verified facts to your free profile to move up at the next edition; there are two ways to stand out now, and each one says what it is.
Not on TrustList yet? Add your product or claim its listing, free.
Free
Paid · always labelled
Every other way we rank digital signature software, by what they do and where they are.
The newest guides and analysis from TrustList Insights.
26 Oct 2026 · TrustList Editorial
Microsoft has revised its notes on how Office extends ISO/IEC 29500 57 times since 2009; the core standard text dates from 2016. Why…
26 Oct 2026 · TrustList Editorial
The Strategic Innovation Open Call has €60 million for 2026 to 2028 and reimburses up to 65% of costs. Consortia need at least two partners…
26 Oct 2026 · TrustList Editorial
Diagram ClimateTech Fund led, with Drive Capital, Fondaction and Developer Capital among six others. CEO Brett Beranek previously ran…
Jump to another ranked category.
Everything here links back to the same verified catalogue. Pick your next stop.