최적화

Repair PDF

Recover pages and rebuild corrupted xref structures from damaged PDFs locally. 이 기기에서 실행됩니다

파일 추가

문서는 현재 열려 있는 브라우저 탭에만 보관됩니다.

PDF 파일만

여기에 파일 하나를 놓으세요또는 기기에서 선택하세요파일 선택PDF 파일만

Choose a local file to begin.

업로드 대기열 없음

문서는 현재 열려 있는 브라우저 탭에만 보관됩니다.

계정 불필요

로그인, 일괄 처리 한도, 서버 파일 저장소가 없습니다.

끝나면 지우기

지우기 기능으로 작업 데이터를 즉시 해제하세요.

가이드

사용 방법 Repair PDF

Parse damaged or non-standard PDFs in tolerant mode and rebuild a clean, standards-compliant PDF container.

입력One damaged, truncated, or poorly generated PDF.

결과One rebuilt, sanitized PDF file.

개인정보이 브라우저 탭에서만 처리됩니다.

About repair PDF

Parse damaged or non-standard PDFs in tolerant mode and rebuild a clean, standards-compliant PDF container. Fix PDFs with broken xref tables, malformed scanner exports, or legacy documents that trigger errors in strict corporate portals.

A file that is completely zeroed out, encrypted with an unknown password, or truncated before any page objects exist cannot be recovered.

How PDFolio helps you repair PDF

PDFolio first attempts tolerant structural parsing with pdf-lib and rebuilds every valid page into a fresh object stream table. If structural parsing fails, it falls back to PDF.js stream recovery to rescue readable pages.

If a file will not open because it requires a password you know, use Unlock PDF instead.

Before you download

Always review all pages in the repaired output to verify no content was truncated in the damaged source file.

When the result is ready, download it immediately and open it in your usual PDF viewer to make a final check. You can then use Clear task data to release temporary file references from this browser tab. PDFolio does not create an account, cloud folder, or server-side document history.

A private way to repair PDF

PDFolio handles the selected files in the active browser tab. A Web Worker on your device performs the PDF task so the interface can remain responsive; document bytes are not sent to a PDF processing server, upload queue, account database, or advertising platform.

단계

Add the PDF file that fails to open properly in strict viewers.
Click Process to run structural recovery and visual fallback reconstruction.
Download the repaired PDF and inspect its pages.

알아 두면 좋은 점: If the object tree is too corrupted for vector cloning, PDFolio automatically attempts page-by-page visual rescue via PDF.js.

자주 묻는 질문

How can a browser repair a corrupted PDF without uploading it?

PDFolio runs two distinct PDF parsers in WebAssembly/JavaScript that rebuild broken cross-reference tables and page trees directly in memory.

Can Repair PDF fix a password-protected file?

No. Encrypted files must be unlocked with their password in Unlock PDF first.

Does repair PDF change my original file?

No. PDFolio creates a new file for download. Your source file remains unchanged on your device.