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PDF to PDF/A
Generate a PDF/A output from an existing PDF while preserving the page content as much as possible.
- 1Upload
- 2Settings
- 3Process
- 4Download
Supported file types: .pdf. You can upload up to 2 files, and each file must be no larger than 25 MB.
Supported file types: .pdf. You can upload up to 2 files, and each file must be no larger than 25 MB.
Settings
Convert a PDF Into an Archival PDF/A File
Prepare documents for long-term storage, record keeping, or workflows that specifically require PDF/A. The conversion creates an archival version designed to preserve the document’s visible appearance while reducing its dependence on features that may not stay reliable in the future.
Select the PDF/A Level Required by Your Workflow
Select PDF/A-1b for broad compatibility with older archival systems, PDF/A-2b for most modern archiving needs, or PDF/A-3b when the archival file must also support embedded attachments. When an organization specifies a particular level, use that exact option instead of choosing based only on compatibility.
Flatten Transparency When Archival Compatibility Requires It
Transparency effects in graphics, shadows, overlays, or layered page elements may need to be simplified during PDF/A conversion. The flattening option can replace those effects with a more stable page representation, although complex artwork should be checked afterward for visible changes.
Common Questions
What is PDF/A used for?
PDF/A is intended for documents that need to remain viewable over a long period, including business records, legal files, institutional submissions, and archival collections. It limits or modifies PDF features that could depend on external resources or future software behavior.
Which PDF/A level should I choose?
Select the level requested by the archive, agency, customer, or document management system receiving the file. When no level is specified, PDF/A-2b is the page’s recommended option for most archives. PDF/A-1b favors older compatibility, while PDF/A-3b supports embedded files.
What is the difference between PDF/A-1b and PDF/A-2b?
PDF/A-1b offers basic visual conformance and is useful when compatibility with older archival systems is important. PDF/A-2b is designed for more modern PDF documents and generally handles current document features more effectively, making it the practical default for many archives.
When should I use PDF/A-3b?
Use PDF/A-3b when the archived PDF needs to retain embedded files as part of the document package. This may be useful when a PDF must contain related source data or supporting files. Confirm that the receiving archive accepts PDF/A-3b before choosing it.
What does flattening transparency do?
Flattening converts transparent or overlapping visual effects into a more fixed page representation. This can improve compatibility with archival requirements, but it may slightly change shadows, gradients, blending, or layered artwork. Review graphically complex pages once conversion.
Does converting to PDF/A prove that a document is legally valid?
No. PDF/A is an archival file standard, not proof of authorship, authenticity, approval, or legal validity. Digital signatures, records policies, retention procedures, and submission rules are individual requirements that may still apply.