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Adobe Approved Trust List (AATL) for Digital Signatures
December 31, 2025 • Lucy Buecking
Magazine subscriptions and newspaper clippings are relics of print that harken to a former time[MS1] . In modern day, there are blogs and news feeds that provide information for industries around the globe. While novel audiences interested in activism and outdoors claim “print ain’t dead”, we are in a modern world where paperless transactions are commonplace. In this modern world, paperless transactions have become standard. Contracts, forms, and agreements are often delivered as PDFs, replacing traditional paper documents. Ensuring these digital documents are trustworthy is crucial—and that’s where Adobe Approved Trust List (AATL) and IdenTrust come in.
Adobe is not just the most popular platform to read a PDF with; it’s also a company that has its own initiative of signer trust. Adobe Approved Trust List (AATL) Members enable [MS2] users to sign documents with digital signing certificates. This comes especially in handy when a printer is out of ink, a client is in a remote locale with a fast-approaching submission deadline, or when a multitude of documents need electronic filing and tracking.
Adobe is not just the most popular platform to read a PDF with; it’s also a company that has its own initiative of signer trust. Adobe Approved Trust List (AATL) Members enable [MS3] users to sign documents with digital signing certificates. This comes especially in handy when a printer is out of ink, a client is in a remote locale with a fast-approaching submission deadline, or when a multitude of documents need electronic filing and tracking.
An AATL-enabled document signing certificate also comes in handy to ensure the owner of the digital certificate is a signer you can know either individually or by business affiliation. Both public and private organizations do business with personnel that work directly for or with vendors and consumers. It’s important to know who signs the digital document, and that identity of the individual or business associated with the digital signature can be repudiated.
Perhaps your business has typically run on a B2B model where there is a history with resellers to support knowing your customer (KYC), and industry shifts where your organization must turn to a B2C model. The business must suddenly sell directly to an end-user consumer (B2C), and maintain KYC for hygienic business practices and to minimize contract risk. Enhancing your purchase process to require your customer to obtain a Medium Assurance Business or Identity certificates on hardware is a great way for your new customer to be known when they are signing contracts digitally.
IdenTrust offers AATL approved digital certificates to qualified applicants. The digital certificates are delivered ready to sign your document. A storage option with enhanced security is offered where the digital certificates are stored on a FIPS 140-2 compliant USB device or smartcard. While the digital certificates will need to be renewed, your signature on your document remains valid even after certificate expiry. Meaning once you sign your PDF using your digital signing certificate, it is valid into perpetuity. Our Timestamping Authority Server enhances your signature by adding a validated date and time of digital signature to your PDF document— this is at no extra cost to you, because your signature should stand the test of time.
[MS1]I suggest an opening line that speaks more about the content to come. Suggestion:
”In today’s digital-first world, paperless transactions have become standard. Contracts, forms, and agreements are often delivered as PDFs, replacing traditional paper documents. Ensuring these digital documents are trustworthy is crucial—and that’s where Adobe Approved Trust List (AATL) and IdenTrust come in ”
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