PDF 온라인 닫기

Remove the open password from a PDF you can already access. Convertr verifies your password with qpdf and saves an unencrypted copy without reducing quality.

Known password required No cracking 워터마크 없음 최대 1GB
PDF

Password-known decryption

Save an editable unencrypted copy

Only enter a password for PDFs you own or are authorized to modify. Convertr does not store or log the password.

PDF를 온라인으로 닫는 방법

  1. 1

    Upload the PDF you own or are authorized to modify.

  2. 2

    Enter the open password you already use to view the PDF.

  3. 3

    Convertr verifies the password with qpdf and writes an unencrypted copy.

  4. 4

    Download the unlocked PDF for editing, printing, merging, OCR, or conversion.

관련 PDF 및 문서 도구

Use the unlocked copy with other Convertr PDF tools for editing, cleanup, OCR, merging, or conversion.

PDF 서명

Fill and self-sign a PDF after unlocking it. Everything runs in your browser.

식물 PDF

Trim PDF margins, scanner borders, or unwanted page edges.

PDF 메타데이터 제거

Strip common document metadata before sharing a PDF.

깔끔한 PDF

Finalize fields, annotations, signatures, markups, and layers after unlocking.

PDF 분할기

Extract pages or split every page into separate files.

PDF 병합기

Combine multiple PDF files into one document.

PDF 압축기

Shrink PDF files with quality-preserving presets.

OCR PDF

Extract searchable text from scanned PDFs and images.

PDF에서 Word로

Convert PDF files to editable document formats.

PDF에서 JPG로

Convert PDF pages into JPG images.

문서 변환기

Convert PDF, DOCX, EPUB, and other document formats.

자주 묻는 질문

Can Convertr unlock a PDF without the password?

No. This tool is only for authorized decryption when you already know the PDF open password. It does not crack passwords, guess passwords, bypass unknown passwords, or defeat access controls.

Does unlocking change PDF quality?

No. qpdf removes encryption and rewrites the PDF structure without rasterizing pages, compressing images, changing dimensions, or reducing resolution.

What if my PDF is not encrypted?

Convertr can return a clean rewritten copy and will clearly report that no password was present.

What if the password is wrong?

The unlock fails with a clear message. Convertr does not retry with guesses, dictionaries, brute force, or cracking libraries.

업로드된 PDF는 비공개인가요?

Files are processed in short-lived temporary storage and automatically deleted after processing. Passwords, filenames, PDF text, document contents, and metadata values are not sent to analytics.