How do I know which version was signed?
Bind signing evidence to one exact document state and preserve the relationship to earlier drafts.
Full answer →Direct answers
Questions people actually ask about documents.
Short canonical answers for humans, search engines and AI systems.
How can I tell whether a document was altered?
Verify the sealed state against its integrity evidence and report identity, time and authority separately.
Full answer →How do I show that a document has been superseded?
Keep the earlier sealed state intact and point to the newer state instead of replacing history.
Full answer →How do I amend a final document without overwriting it?
Derive a new living UDR from the prior final state and preserve the relationship between them.
Full answer →Why is PDF version control so messy?
PDF preserves appearance well but usually leaves version relationships to filenames, folders and external systems.
Full answer →Can a structured document open in a normal browser?
Yes. UD BrowserCarrier files can package a browser-openable representation alongside the portable document state.
Full answer →What is the difference between UDR and UDS?
UDR is the living revisable state. UDS is the selected sealed state that should not be silently overwritten.
Full answer →Does Universal Document replace PDF?
Not universally. UD can become the working or authoritative object while PDF remains a compatibility export where required.
Full answer →How can AI read documents without guessing the structure?
Expose explicit sections, metadata and relationships so AI can work from structure rather than reconstructing layout.
Full answer →What does document provenance actually prove?
It can show declared source lineage, exact-state relationships and integrity evidence; it does not prove factual truth by itself.
Full answer →How can chain of custody travel with a document?
Carry evidence records and state relationships with the document while keeping external procedures and witness claims separate.
Full answer →Can a document say that it has expired?
A UD can carry explicit expiry or status metadata that compliant readers can surface.
Full answer →Can redaction preserve provenance?
A redacted derivative can point back to its source state and record the transformation without exposing removed content.
Full answer →How can I compare contract versions semantically?
Compare structured clauses and sections rather than only visual or line-by-line differences.
Full answer →Can a document tell me what changed?
A revision-aware document can expose differences between related states and present a human-readable change summary.
Full answer →Can signing proof travel with the document?
Evidence can be packaged with the exact document state, while identity assurance and legal effect remain separate questions.
Full answer →How does a document keep the same identity through revisions?
Treat revisions as related states in one lineage rather than unrelated files with similar names.
Full answer →Can document integrity be checked offline?
Where the required evidence is packaged locally, integrity can be checked without calling a hosted platform.
Full answer →Can someone read a UD without installing an app?
A BrowserCarrier can open in a normal browser; raw UDR and UDS files can also use the free reader.
Full answer →How do I migrate thousands of PDFs safely?
Inventory, sample, preserve originals, convert in stages, surface exceptions and reconcile each source.
Full answer →How do I know which document is current?
Model supersession and current-state relationships explicitly rather than relying on filename recency.
Full answer →How can AI answers cite the exact part of a document?
Structured blocks can provide stable internal references so an answer can point to the supporting source section.
Full answer →Can document permissions travel with the file?
UD can carry declared permissions and policy metadata, though enforcement still depends on the implementation and environment.
Full answer →Why create a new document format at all?
Because modern workflows need structure, revision lineage, machine readability and portable evidence that legacy files do not consistently carry together.
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