OptiPDF

Unlock PDF

Upload one PDF to remove owner permission restrictions, or enter the known open password to decrypt a password-protected PDF.

We do not crack or guess passwords. If the PDF requires a password, you need to provide the correct one.

Removes permission restrictions

If a PDF opens without a password but blocks printing, copying, or editing, we create a new unrestricted copy when the file allows it.

Secure processing

Files are processed on our servers using temporary files that are cleaned up after processing. We do not read your document contents.

How to Unlock a PDF Online

1

Upload the locked PDF by clicking the upload area or dragging the file into it.

2

If the PDF asks for an open password, enter the known password in the password field.

3

Click "Unlock PDF" and download the unrestricted PDF when processing finishes.

Frequently Asked Questions

You need the password only when the PDF cannot be opened without one. If the file opens but has printing or copying limits, the password field can stay empty.

Yes, when the PDF can already be opened without a password. The tool saves a normal PDF copy without owner permission restrictions when the file format supports it.

No. We do not guess, crack, or bypass unknown open passwords. Ask the document owner for the password and try again.

Your PDF is processed using temporary files that are cleaned up after processing. We do not read or share your document contents.

Công cụ PDF khác

Hợp nhất PDF

Kết hợp nhiều tệp PDF thành một tệp PDF.

Chia tách PDF

Chia một tệp PDF thành nhiều tệp PDF.

Nén PDF

Giảm kích thước tệp PDF trong khi tối ưu hóa chất lượng.

PDF sang Word

Chuyển đổi tệp PDF thành tài liệu Word có thể chỉnh sửa trực tuyến.

PDF sang JPG

Chuyển đổi mỗi trang của PDF của bạn thành hình ảnh JPG chất lượng cao.

OCR PDF

Biến PDF quét thành có thể tìm kiếm bằng cách thêm một lớp văn bản với OCR.