Detailed diagnosis
See normalized structural warnings, tolerant page status, readable and unreadable pages, and bounded object and annotation counts.
Private PDF recovery
Diagnose damage before attempting to repair your PDF.
Inspect and repair a damaged PDF while source bytes and recovery evidence remain on this device. Review structural warnings and readable pages, attempt the least destructive reconstruction, or explicitly salvage only readable pages, then download a validated recovered copy. Repair is not universal: severely missing, encrypted, truncated, or corrupted content may be unrecoverable, and salvaged output can omit damaged features.
Local diagnosis
Diagnose one PDF
Source bytes and recovery evidence stay on this device
On-device processing runs structural and page-recovery checks. PdfEditorOnlineFree does not upload the source, pages, diagnostics, repaired bytes, or recovery report. Review exact component licenses on the licenses page.
Best effort, independently checked
Repair is a sequence of evidence-backed strategies, not a universal promise.
Some PDFs are clean, some have recoverable document-structure damage, and some have permanently missing content. PdfEditorOnlineFree keeps these outcomes distinct and never enables a PDF download until a fresh structural check and page-by-page reopen both pass.
Safe structural reconstruction
The recovery process writes a new copy and can rebuild recoverable document structure. The original file is never replaced.
Explicit partial salvage
When only some pages remain readable, salvage requires consent and names discarded pages plus document-level structures that may be lost.
Validated output and report
Every candidate is structurally checked, reopened page by page, and paired with a bounded JSON recovery report before download.
Continue your workflow
Related tools
These available PdfEditorOnlineFree tools are connected to repair pdf by the tool catalog.