Free Online PDF Decrypt

Use the Micro PDF PDF decrypt tool to remove password protection from PDF files (including open password and edit password). Requires providing the correct original password to complete decryption. After decryption, files will restore full access rights (view, edit, copy, print), suitable for scenarios where you know the password but need frequent file usage or want to remove password restrictions. The operation is safe and does not change original file content.

Whether it's personally encrypted documents or team-shared encrypted PDFs, Micro PDF can quickly decrypt them. Free users support removing open passwords to meet daily decryption needs.

Table of Contents

• Key Features
• How to Use Micro PDF to Decrypt PDF
• Decryption Types and Conditions
• File Status After Decryption
• Multi-Platform Support and Batch Decryption
• Frequently Asked Questions

Key Features

• Dual Password Decryption: Supports removing "Open Password" (requires correct password to view) and "Edit Password" (requires correct password for modification permissions).
• Lossless Decryption: Decryption process doesn't change PDF text, images, layout and other content, only removes password protection.
• Secure Operation: Requires original password verification to decrypt, prevents unauthorized decryption, protects file security.
• Free Basic Function: Supports removing open password, single files up to 200MB, unlimited daily usage.
• Fast Processing: PDF files under 100 pages complete decryption within 10 seconds, decrypted files can be used directly.

How to Use Micro PDF to Decrypt PDF

The Micro PDF PDF decrypt tool has simple operation, completed in 3 steps:

1. Visit the Micro PDF website: Micro PDF, click on the "PDF Decrypt" tool entry.
2. Upload the PDF file to be decrypted (supports drag-and-drop upload, up to 3 files at once).
3. Enter decryption password:
   • If file only has open password, enter open password;
   • If file has both open and edit passwords, enter either valid password (open password verified first);
4. Click "Start Decryption", then click "Download Decrypted File" after completion to save password-free PDF.

Efficient Decryption Tips

• Batch Decryption: For multiple encrypted PDFs with same password, can batch upload and enter password once, complete decryption in one go.
• Distinguish Password Types: If uncertain about password type (open/edit), can first try entering common passwords, tool will automatically verify validity.
• Backup After Decryption: Suggest saving decrypted files separately, distinguish from original encrypted files to avoid confusion.

Decryption Types and Conditions

Different encryption types have different decryption requirements and effects, specifically as follows:

File Status After Decryption

Comparison of file status after decryption vs original encrypted file:

Multi-Platform Support and Batch Decryption

The Micro PDF PDF decrypt tool supports all-scenario usage:

• Web Version: Computer browsers for batch decryption, suitable for office scenarios processing frequently used encrypted documents (such as contract templates).
• Mobile Version: WeChat mini-program "Micro PDF" supports mobile upload of encrypted PDF decryption, suitable for emergency file processing when traveling.
• Desktop Version: Client supports offline decryption of large files (over 500MB), batch processing of 10 files with 30% faster decryption speed.

Frequently Asked Questions

1. Can PDF be decrypted without knowing the original password?

No. Micro PDF doesn't support brute force password cracking, must provide correct original password to decrypt, ensuring file owner rights.

2. What's the difference between free user and VIP user decryption functions?

3. Are there security risks with decrypted files?

No. Decryption process only removes password protection, doesn't modify file content; and tool doesn't store original or decrypted files, automatically deleted after processing.

4. Can files be re-encrypted after decryption?

Yes. Decrypted files can be directly re-passworded with the "PDF Encrypt" tool, suitable for password changes or permission adjustments.

5. Can 256-bit AES algorithm encrypted files be decrypted?

Yes. Micro PDF supports decrypting PDF files encrypted with 128-bit and 256-bit AES, as long as correct password is entered.

6. What if format chaos is found after decryption?

No format chaos will occur. Decryption doesn't involve content parsing, only removes password tags, file format identical to original encrypted file.

7. Can scanned PDF be decrypted?

Yes. As long as the scanned PDF has password protection, regardless of content being images or text, entering correct password will decrypt it (unrelated to file type).