From paper to flow: five mistakes when going digital.
The habits of paper that carry over into digital, and how to avoid them.
Digitizing signatures looks like a simple task: paper becomes a file, the pen becomes a button. In practice, many organizations discover years later that they carried the flaws of paper into the digital world and, along the way, lost some of its virtues. These are the five mistakes that come up most often, and what to do about each one.
1. Copying paper as is
The most visible example is pasting a scanned image of a handwritten signature onto a PDF. It looks like a signature, but it proves nothing: anyone with that image can paste it onto any document, and the file does not detect later changes. The same thing happens, more subtly, when a paper workflow is replicated without asking why each step existed in the first place.
What to do. Separate appearance from substance. The visual representation can stay out of habit, but the real signature is the one embedded in the structure of the document and in the evidence that accompanies it.
2. Signing at the end what was decided along the way
In many processes, the document is negotiated over email, approved in a meeting, corrected in a chat, and only at the very end sent out for signature. The result is a flawless signature on a document whose history is scattered. If someone asks who approved the third clause, the answer is in a message thread that nobody kept.
What to do. Bring the relevant approvals into the same workflow as the signature, along with the exact version each person saw. An internal approval is also a decision that may one day have to be proven.
3. Choosing a single level for everything
Some organizations require the highest level of signature for every transaction, while others use the simplest one for everything. The former create friction, abandonment and informal workarounds. The latter sign off with a single click on decisions that deserved solid identification.
What to do. Classify documents according to what is at stake and assign each class a signature level and an identity level. That decision should be written down, have an owner, and be reviewed whenever regulations or risks change.
| Document class | Signature | Signer identity |
|---|---|---|
| Internal and low impact | Simple, with an event log | Corporate account |
| Contracts with third parties | Advanced, with a timestamp | Verified document and second factor |
| Acts with legal requirements | Whatever level the law requires | Whatever that level demands |
4. Forgetting about afterward
On signing day everything works: the system shows a green check mark and everyone is reassured. But a contract may have to be produced ten years later, when the provider has changed, the certificate has expired, and the algorithms of the time are no longer considered secure. A signature that can only be verified inside the platform that created it is a rented signature.
What to do. Use standard formats that support long term validation, such as the PDF Advanced Electronic Signature profiles (PAdES) defined by ETSI; embed timestamps and revocation information in the document itself; and make sure everything, document and evidence alike, can be exported without depending on the provider.
5. Treating evidence as an attachment
Many services deliver, along with the signed document, a certificate of completion: a page with dates, email addresses and identifiers. It is useful, but if it is just one more PDF, it can be separated from the document, lost, or edited without anyone noticing.
What to do. Require that the evidence be cryptographically bound to the document and that events be chained, so that altering one breaks the sequence. Evidence is part of the signature, not a souvenir of it.
The most common mistakes when digitizing signatures are copying paper, leaving decisions outside the workflow, using a single level for everything, forgetting about future validation, and treating evidence as an attachment. They all share the same root: thinking about the moment of signing rather than the day it will have to be proven.