Documents & PDF · ONLINE TOOL

Repair PDF

PDF Repair Pro: diagnose structure, choose a recovery strategy, verify the copy before/after and produce a report.

Local + external resourcesWorkToolset Pro

USE CASES

When to use Repair PDF?

Locally diagnose a PDF with qpdf, PDF.js and structural checks, apply an appropriate recovery strategy, then compare the repaired copy before/after.

Try to recover a PDF rejected by some readers
Rebuild a problematic xref table or object streams
Create a compatibility copy without object streams
Visually salvage renderable pages when structure is too damaged

CONCRETE EXAMPLE

Damaged PDF

BEFORE

Unstable opening · qpdf warnings · risky structure

→

AFTER

Recommended strategy + verified copy + recovery score + PDF/JSON report

PRIVACY

The file stays local while the engine can download resources

User content is not uploaded to WorkToolset for processing. A library, WebAssembly engine or AI model may be downloaded on first use depending on the tool.

GOOD TO KNOW

Limitations to know

No engine can recreate objects or pages that are genuinely missing from a truncated file.
Any rewrite can invalidate a digital signature; visual recovery removes selectable text, links, forms, annotations, attachments and signatures.
A successful qpdf check primarily validates syntax/structure and does not guarantee semantic or visual integrity.

HOW IT WORKS

A straightforward workflow.

1Prepare the required input and choose useful options.
2Review previews, warnings and limitations before export.
3Download a new copy or report: the original stays unchanged.

PRIVACY

Frequently asked questions

Are my files uploaded to WorkToolset?

No. This tool runs locally in your browser.

Is my original file modified?

No. WorkToolset creates a new copy or export.

Do I need an account?

This tool is part of WorkToolset advanced features.