Normalize PDF structure
Creates a new serialized PDF. It intends to retain pages, metadata, attachments, actions, forms, and tags, but malformed or unsupported objects may be omitted. Any signature can be invalidated.
Local diagnostics
Check PDF structure and rendering readiness
Compare strict and tolerant parsers, inspect bounded structural signals, and optionally test every page without uploading the PDF.
Choose one PDF
Choose a PDF or drop it hereThe file stays in page memory and the original is never changed.
Preparing…
Diagnostic signals
A signature field is present. Any rewrite can invalidate an existing digital signature; validity is not checked.
Structure-tree, language, title, and alternative-text presence are readiness signals only.
Choose an output only if needed
Rebuild page content
Lossy: renders every page into a fresh image-only PDF. Searchable text, links, forms, annotations, attachments, metadata, tags, vector detail, and signatures are removed.
Verified output ready
What this check does not establish
This bounded comparison is not a comprehensive repair, accessibility, security, or signature assessment. A tolerant parse or present structure tree does not prove document quality. Rebuilding page images is intentionally destructive.