https://github.com/pulipulichen/colab-pdf-protector

A tool for removing PDF protection restrictions.
https://github.com/pulipulichen/colab-pdf-protector

colab pdf puli-portfolio qpdf

Last synced: about 18 hours ago
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A tool for removing PDF protection restrictions.

• Host: GitHub
• URL: https://github.com/pulipulichen/colab-pdf-protector
• Owner: pulipulichen
• License: apache-2.0
• Created: 2025-01-09T07:59:52.000Z (12 days ago)
• Default Branch: main
• Last Pushed: 2025-01-09T14:02:05.000Z (11 days ago)
• Last Synced: 2025-01-09T14:33:45.338Z (11 days ago)
• Topics: colab, pdf, puli-portfolio, qpdf
• Language: Jupyter Notebook
• Homepage:
• Size: 329 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Citation: CITATION.cff

Awesome Lists containing this project

README

        
[![DOI](https://zenodo.org/badge/914238245.svg)](https://doi.org/10.5281/zenodo.14619845)

# Colab-PDF-Protector: 移除 PDF 保護限制的工具

This tool takes a protected PDF file as input with a known password and attempts to remove its restrictions, such as copying and printing, outputting an unrestricted PDF file.

輸入受保護的 PDF 檔案以及你知道的密碼，這個工具會嘗試移除 PDF 的保護限制，例如複製、列印等等，並輸出一個無保護限制的 PDF 檔案。

![](https://blogger.googleusercontent.com/img/a/AVvXsEh2vfP5lonPUaMd4hwaKaCXqfED23CzeIBydGQEYesGeGSD0vC_W3jULKucDvut8twbVfPrPDDxE3b1NCluwyZJ4fAjp5ycnLBUyCQraxCg2C2goB6yscAcQL8zg1ctYGxmlYLoGUIKlF6QxbKy8NhmH2V3lgfFzBLqOB5elCs-wwYBYRs_2C0iqQ)

# Online Tool

https://colab.research.google.com/github/pulipulichen/Colab-PDF-Protector/blob/main/Colab_PDF_Protector.ipynb

# Example File

https://pulipulichen.github.io/Colab-PDF-Protector/example%20file/2023.02.12%20%E6%A8%A1%E5%9E%8B%E6%9E%B6%E6%A7%8B%E5%9C%96+FSB%E9%97%9C%E9%8D%B5%E5%AD%97%E6%8A%BD%E5%8F%96%20a.pdf

- Open password: open_password 

- Edit password: edit_password

# Key Techniques

- **qpdf**:  處理PDF檔案內容和結構的函式庫。

- **Google Colab**: 一個提供免費雲端運算資源的平台，可以執行 Linux 工具和 Python 程式碼。

- **Python**:  用於檔案處理和控制qpdf函式庫。

# Blog

https://blog.pulipuli.info/2025/06/unlocking-or-encrypting-pdf-files-colab-pdf-protector.html

# Citation

Chen, Y.-T. (2025). *Colab-PDF-Protector* (Versions 20250110-0820) [Computer software]. Zenodo. [https://doi.org/10.5281/ZENODO.14619845](https://doi.org/10.5281/ZENODO.14619845)