What are the benefits of PDF Repair?

[3-Stage Loading Strategies]: Tries standard loading, tolerant object parsing, and encryption-ignore mode to see whether pages can be read.. [Readable Processing Log]: Shows the strategy used, page count, file size change, and status messages from each stage.. [Browser-Based Re-save Attempt]: Tries to reload and re-save the PDF in the browser without server-side repair uploading..

Yes, it is completely free to use, and no registration is required. Tool processing happens entirely in your browser, and your input content and uploaded files are not sent to a server. Our first-party improvement metrics use no cookies, visitor IDs, or session IDs and store only normalized page paths and daily counts for fixed event IDs.

PDF Repair

Try 3-stage loading strategies and re-save the PDF

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PDF修復

ファイルをドラッグ＆ドロップ

About PDF Repair

The 'PDF Repair' tool is an online PDF utility that tries to reload and re-save corrupted, damaged, or error-prone PDF files in your browser. PDF files can become corrupted due to incomplete downloads, email attachment damage, storage failures, software crashes, or data loss during file transfers.

This tool attempts multiple loading strategies in stages. It first tries normal loading, then progresses to tolerant object parsing if that fails, and finally tries an encryption-ignore mode. If the PDF can be loaded, the tool re-saves it and reports the strategy used, page count, and before/after file sizes. Recovery depends on the type and severity of corruption, so some PDFs cannot be repaired.

Operation is straightforward: drag and drop your PDF file and click the 'Repair' button. Processing runs in the browser, so the PDF does not need to be uploaded for server-side repair. If you can open the file and need cleanup, use [PDF Compressor](/en/pdf/pdf-compressor/) or [PDF Blank Page Remover](/en/pdf/pdf-blank-page-remover/). To save only the pages you need, use [PDF Page Extractor](/en/pdf/pdf-extract-pages/). To make form fields or annotations fixed, use [PDF Flatten](/en/pdf/pdf-flatten/). If repair fails, the error message can help you understand the file's damage level.

How to use PDF Repair

Drag and drop the PDF file into the upload area, or click to select it from your device.
Once the filename and size appear, click the 'Repair' button. Multiple repair strategies will be automatically attempted.
Review the repair log showing which strategy was used, recovered page count, and file size reduction, then download your repaired PDF.

Benefits of PDF Repair

[3-Stage Loading Strategies]: Tries standard loading, tolerant object parsing, and encryption-ignore mode to see whether pages can be read.
[Readable Processing Log]: Shows the strategy used, page count, file size change, and status messages from each stage.
[Browser-Based Re-save Attempt]: Tries to reload and re-save the PDF in the browser without server-side repair uploading.