Unlock PDF
Remove Password in Your Browser
Remove a PDF open password or usage restrictions when you know the password. Decryption runs locally. This tool does not crack unknown passwords.
Unlock runs only in your browser. You must know the password — unknown passwords are not cracked, and nothing is uploaded.
Drag & drop a PDF, or browse below
The open (user) password you already know. This tool does not guess or crack passwords.
- Original—
- Result—
What is this tool?
An honest PDF unlocker: it decrypts a file only when you supply the correct open password, then saves a copy without encryption. Everything stays in the browser.
It is not a cracking service, not Adobe Acrobat, and not a way to bypass someone else’s documents.
Common use cases
- You passworded a scan last year and still remember the phrase, but a website rejects encrypted uploads
- A colleague sent a locked PDF and also sent the password in another channel
- You want an unencrypted copy on disk after opening the file locally
How to use
- Drop the encrypted PDF.
- Enter the password you already know (Sample uses
sample). - Download PDF. If the password is wrong, you get an error — not a guessed file.
Examples
| Input | Notes |
|---|---|
Sample locked PDF, password sample | Demonstrates success; output opens without a prompt. |
| Correct user password on a real file | Unencrypted copy; keep it as carefully as the original secret. |
| Wrong password | Error; no partial dump. |
| Unencrypted PDF | Message that the file is not password-protected. |
Practical pitfalls
- Not a cracker: missing passwords stay missing. There is no “try common passwords” mode on purpose.
- Some AES/revision combinations may fail in the library even with the right password; that is a decoder limit.
- Unique gotcha: saving an unlocked copy does not revoke the original encrypted file. Anyone with the old file and password can still open it.
References
이 도구는 무엇인가요?
An honest PDF unlocker: it decrypts a file only when you supply the correct open password, then saves a copy without encryption. Everything stays in the browser.
It is not a cracking service, not Adobe Acrobat, and not a way to bypass someone else’s documents.
자주 쓰는 경우
- You passworded a scan last year and still remember the phrase, but a website rejects encrypted uploads
- A colleague sent a locked PDF and also sent the password in another channel
- You want an unencrypted copy on disk after opening the file locally
사용 방법
- Drop the encrypted PDF.
- Enter the password you already know (Sample uses
sample). - Download PDF. If the password is wrong, you get an error — not a guessed file.
예시
| Input | Notes |
|---|---|
Sample locked PDF, password sample | Demonstrates success; output opens without a prompt. |
| Correct user password on a real file | Unencrypted copy; keep it as carefully as the original secret. |
| Wrong password | Error; no partial dump. |
| Unencrypted PDF | Message that the file is not password-protected. |
실무에서 흔한 실수
- Not a cracker: missing passwords stay missing. There is no “try common passwords” mode on purpose.
- Some AES/revision combinations may fail in the library even with the right password; that is a decoder limit.
- Unique gotcha: saving an unlocked copy does not revoke the original encrypted file. Anyone with the old file and password can still open it.
참고자료
このツールについて
An honest PDF unlocker: it decrypts a file only when you supply the correct open password, then saves a copy without encryption. Everything stays in the browser.
It is not a cracking service, not Adobe Acrobat, and not a way to bypass someone else’s documents.
よくある用途
- You passworded a scan last year and still remember the phrase, but a website rejects encrypted uploads
- A colleague sent a locked PDF and also sent the password in another channel
- You want an unencrypted copy on disk after opening the file locally
使い方
- Drop the encrypted PDF.
- Enter the password you already know (Sample uses
sample). - Download PDF. If the password is wrong, you get an error — not a guessed file.
例
| Input | Notes |
|---|---|
Sample locked PDF, password sample | Demonstrates success; output opens without a prompt. |
| Correct user password on a real file | Unencrypted copy; keep it as carefully as the original secret. |
| Wrong password | Error; no partial dump. |
| Unencrypted PDF | Message that the file is not password-protected. |
実務での落とし穴
- Not a cracker: missing passwords stay missing. There is no “try common passwords” mode on purpose.
- Some AES/revision combinations may fail in the library even with the right password; that is a decoder limit.
- Unique gotcha: saving an unlocked copy does not revoke the original encrypted file. Anyone with the old file and password can still open it.
参考資料
¿Qué es esta herramienta?
An honest PDF unlocker: it decrypts a file only when you supply the correct open password, then saves a copy without encryption. Everything stays in the browser.
It is not a cracking service, not Adobe Acrobat, and not a way to bypass someone else’s documents.
Casos de uso comunes
- You passworded a scan last year and still remember the phrase, but a website rejects encrypted uploads
- A colleague sent a locked PDF and also sent the password in another channel
- You want an unencrypted copy on disk after opening the file locally
Cómo usar
- Drop the encrypted PDF.
- Enter the password you already know (Sample uses
sample). - Download PDF. If the password is wrong, you get an error — not a guessed file.
Ejemplos
| Input | Notes |
|---|---|
Sample locked PDF, password sample | Demonstrates success; output opens without a prompt. |
| Correct user password on a real file | Unencrypted copy; keep it as carefully as the original secret. |
| Wrong password | Error; no partial dump. |
| Unencrypted PDF | Message that the file is not password-protected. |
Errores prácticos
- Not a cracker: missing passwords stay missing. There is no “try common passwords” mode on purpose.
- Some AES/revision combinations may fail in the library even with the right password; that is a decoder limit.
- Unique gotcha: saving an unlocked copy does not revoke the original encrypted file. Anyone with the old file and password can still open it.
Referencias
Qu'est-ce que cet outil ?
An honest PDF unlocker: it decrypts a file only when you supply the correct open password, then saves a copy without encryption. Everything stays in the browser.
It is not a cracking service, not Adobe Acrobat, and not a way to bypass someone else’s documents.
Cas d'usage courants
- You passworded a scan last year and still remember the phrase, but a website rejects encrypted uploads
- A colleague sent a locked PDF and also sent the password in another channel
- You want an unencrypted copy on disk after opening the file locally
Comment utiliser
- Drop the encrypted PDF.
- Enter the password you already know (Sample uses
sample). - Download PDF. If the password is wrong, you get an error — not a guessed file.
Exemples
| Input | Notes |
|---|---|
Sample locked PDF, password sample | Demonstrates success; output opens without a prompt. |
| Correct user password on a real file | Unencrypted copy; keep it as carefully as the original secret. |
| Wrong password | Error; no partial dump. |
| Unencrypted PDF | Message that the file is not password-protected. |
Pièges courants
- Not a cracker: missing passwords stay missing. There is no “try common passwords” mode on purpose.
- Some AES/revision combinations may fail in the library even with the right password; that is a decoder limit.
- Unique gotcha: saving an unlocked copy does not revoke the original encrypted file. Anyone with the old file and password can still open it.
Références
这个工具是什么？
An honest PDF unlocker: it decrypts a file only when you supply the correct open password, then saves a copy without encryption. Everything stays in the browser.
It is not a cracking service, not Adobe Acrobat, and not a way to bypass someone else’s documents.
常见用途
- You passworded a scan last year and still remember the phrase, but a website rejects encrypted uploads
- A colleague sent a locked PDF and also sent the password in another channel
- You want an unencrypted copy on disk after opening the file locally
如何使用
- Drop the encrypted PDF.
- Enter the password you already know (Sample uses
sample). - Download PDF. If the password is wrong, you get an error — not a guessed file.
示例
| Input | Notes |
|---|---|
Sample locked PDF, password sample | Demonstrates success; output opens without a prompt. |
| Correct user password on a real file | Unencrypted copy; keep it as carefully as the original secret. |
| Wrong password | Error; no partial dump. |
| Unencrypted PDF | Message that the file is not password-protected. |
实践中的常见误区
- Not a cracker: missing passwords stay missing. There is no “try common passwords” mode on purpose.
- Some AES/revision combinations may fail in the library even with the right password; that is a decoder limit.
- Unique gotcha: saving an unlocked copy does not revoke the original encrypted file. Anyone with the old file and password can still open it.
参考资料
這個工具是什麼？
An honest PDF unlocker: it decrypts a file only when you supply the correct open password, then saves a copy without encryption. Everything stays in the browser.
It is not a cracking service, not Adobe Acrobat, and not a way to bypass someone else’s documents.
常見用途
- You passworded a scan last year and still remember the phrase, but a website rejects encrypted uploads
- A colleague sent a locked PDF and also sent the password in another channel
- You want an unencrypted copy on disk after opening the file locally
如何使用
- Drop the encrypted PDF.
- Enter the password you already know (Sample uses
sample). - Download PDF. If the password is wrong, you get an error — not a guessed file.
範例
| Input | Notes |
|---|---|
Sample locked PDF, password sample | Demonstrates success; output opens without a prompt. |
| Correct user password on a real file | Unencrypted copy; keep it as carefully as the original secret. |
| Wrong password | Error; no partial dump. |
| Unencrypted PDF | Message that the file is not password-protected. |
實務上常見陷阱
- Not a cracker: missing passwords stay missing. There is no “try common passwords” mode on purpose.
- Some AES/revision combinations may fail in the library even with the right password; that is a decoder limit.
- Unique gotcha: saving an unlocked copy does not revoke the original encrypted file. Anyone with the old file and password can still open it.
參考資料
Last reviewed: 2026-08-30
Frequently asked questions
- Do you crack PDF passwords?
- No. You must type the correct open (user) password. There is no wordlist, GPU attack, or “forgot password” recovery. If you do not know the password, this page cannot help.
- Is the file uploaded?
- No. Decrypt-and-save runs in this tab with a client-side PDF library.
- User password vs owner (permissions) password?
- This tool targets the **open** password that stops you from viewing the file. Owner-only restriction files (print/copy flags without an open password) may already open; use a PDF editor for permission flags if the document is not encrypted for opening.
- Sample password?
- The Sample file uses the password `sample` so you can try the flow without a real confidential PDF.