compress-pdf | comptess-pdf - cli util to compress a pdf | Document Editor library

by jbenet Shell Version: Current License: MIT

X-Ray Key Features Code Snippets(1)Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | compress-pdf Summary

compress-pdf is a Shell library typically used in Editor, Document Editor, Nodejs applications. compress-pdf has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

comptess-pdf - cli util to compress a pdf

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Quality

Security

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Support

compress-pdf has a low active ecosystem.

It has 73 star(s) with 16 fork(s). There are 5 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 0 have been closed. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of compress-pdf is current.

Quality

compress-pdf has 0 bugs and 0 code smells.

Security

compress-pdf has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

compress-pdf code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

compress-pdf is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

compress-pdf releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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compress-pdf Key Features

No Key Features are available at this moment for compress-pdf.

compress-pdf Examples and Code Snippets

Compress a PDF file .

python

Lines of Code : 31

License : Permissive (MIT License)

Copy

def compress_file(input_file: str, output_file: str):
    """Compress PDF file"""
    if not output_file:
        output_file = input_file
    initial_size = os.path.getsize(input_file)
    try:
        # Initialize the library
        PDFNet.Initial

Community Discussions

Trending Discussions on compress-pdf

I can't decompress PDF without invalidating it's signature

QUESTION

I can't decompress PDF without invalidating it's signature

Asked 2020-Jul-19 at 01:22

I'm learning how to spoof PDFs and the next step is being able to decompress a signed PDF in order to edit its raw/source material. The problem I run into is after a signing a PDF the signature is valid, but the process of decompressing the file ends up invalidating the signature followed by the error

...

ANSWER

Answered 2020-Jul-19 at 01:22

I'm sure sure if there are different options/flags that I could use to achieve decompression of the file without invalidating the signature.

If anybody knows a way to decompress without invalidating signatures please let me know!

That is impossible.

A digital signature integrated in a PDF (at least an interoperable one) signs all the bytes of that file (except the placeholder containing the signature itself). Decompressing obviously changes those bytes, so the signature is invalidated.

Consequentially, you can also not spoof those bytes without invalidating the signature.

What you can try, though, is

change content in the placeholder (which can be larger than the signature and be filled with zeros) or
add content at the end as an incremental update.

Also you can try techniques as presented on the PDF Insecurity site. Current viewer versions should notice these techniques but probably they don't....

Source https://stackoverflow.com/questions/62971533

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install compress-pdf

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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