PDF to PDF/A

Converting PDFs to PDF/A for long-term archiving

A normal PDF can render differently five years from now: a font it relied on may be missing on the viewer's machine, a linked colour profile may be gone, or a viewer may substitute glyphs and quietly change how the text looks. PDF/A exists to stop that drift. This tool restructures your PDF on the server (using Ghostscript via ocrmypdf) so the file carries everything it needs to look the same later, and so it satisfies the requirements many institutions check for.

When you actually need PDF/A

• Court and government e-filing. Many e-filing portals reject ordinary PDFs and accept only PDF/A. Run your final, signed-off document through here before you submit, so it isn't bounced at the upload step.
• Records retention and audits. If your company has to keep invoices, contracts, or compliance documents readable for 7–10 years, archiving them as PDF/A removes the "will this still open correctly?" risk for auditors.
• Library, journal, and thesis deposits. University repositories and academic publishers frequently mandate PDF/A for dissertations and accepted manuscripts. Convert the camera-ready file before deposit.
• Long-lived internal documentation. Engineering drawings, policy manuals, and product specs that must stay faithful across years and across whatever PDF viewer is current then.

What "PDF/A" means, briefly

PDF/A is an ISO standard (ISO 19005) for the archival use of PDF. The core rules: all fonts must be embedded (no relying on the reader's installed fonts), the document must be self-contained (no external links, no JavaScript, no audio/video), colour must be defined unambiguously, and required XMP metadata must be present. The point is determinism — anyone opening the file later reconstructs the same visual result without external dependencies.

This tool preserves your page content and layout; it embeds fonts and metadata to meet the standard rather than redesigning the document.

Practical tips

• Convert last, not first. PDF/A bans some interactive features, so do your merging, page ordering, watermarking, and signing before you archive. Treat conversion as the final step that freezes the document.
• Scanned documents: OCR first. Conversion happily processes a scanned PDF, but the result is still an image with no searchable text. Run OCR PDF before converting so the archive is searchable and selectable — a real requirement in many records systems.
• Watch the file size. Embedding every font can grow the file. If size matters for your repository, run Compress PDF first; use its smart mode so text stays selectable rather than rasterize, which flattens pages to images.

When to use a different tool

• You only need a smaller file, not an archival format → Compress PDF.
• You want to remove interactive form fields and lock the appearance, but don't need ISO compliance → Flatten PDF.
• You're starting from a Word, Excel, or PowerPoint file → convert with Office to PDF first, then archive the PDF here.
• You need an editable document back, not an archive → PDF to Word (best-effort, for text-based PDFs).