i7j-rups
kaitai_struct_formats
| i7j-rups | kaitai_struct_formats | |
|---|---|---|
| 3 | 3 | |
| 248 | 682 | |
| 0.8% | 0.1% | |
| 5.3 | 6.3 | |
| 13 days ago | 21 days ago | |
| Java | Kaitai Struct | |
| GNU General Public License v3.0 or later | - |
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i7j-rups
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So you want to modify the text of a PDF by hand
Great post. I've spend a lot of time reading through the PDF specification over the last ~5 years while building DocSpring [1], and I still feel like I've barely scratched the surface. qpdf is a great tool. One of my other favorites is RUPS [2], which really lets you dig into the structure of a PDF.
[1] https://docspring.com
[2] https://github.com/itext/i7j-rups
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Show HN: I am building a new Python library to read/write PDF files
> find a version of iText RUPS application from somewhere on the internet
You mean this, right? https://github.com/itext/i7j-rups#readme
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Any decent free online tool which can give me a breakdown of pdf contents including relative sizes of assets such as images, fonts, etc?
It's not an online tool, but it's free nonetheless: https://github.com/itext/i7j-rups
kaitai_struct_formats
- Magika: AI powered fast and efficient file type identification
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Fq: Jq for Binary Formats
Kaitai has a repository of binary formats[1] that can be used in visualizers or to auto-generate parsers.
[1] https://formats.kaitai.io/
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Show HN: I am building a new Python library to read/write PDF files
This is tangential to your submission, but PDF is the file format I use for exercising any library that claims to be a declarative file format (ala https://github.com/kaitai-io/kaitai_struct_formats#readme )
What are some alternatives?
PyMuPDF - PyMuPDF is a high performance Python library for data extraction, analysis, conversion & manipulation of PDF (and other) documents.
pdfsyntax - A Python library to inspect and modify the internal structure of a PDF file
pdfquery - A fast and friendly PDF scraping library.
djot - A light markup language
cutter - Free and Open Source Reverse Engineering Platform powered by rizin
annotated-pdf-spec - Collection of useful hints for implementing a PDF library
jqjq - jq implementation of jq
bericht - Incremental HTML to PDF converter.
pdfplumber - Plumb a PDF for detailed information about each char, rectangle, line, et cetera — and easily extract text and tables.
polyfile - A pure Python cleanroom implementation of libmagic, with instrumented parsing from Kaitai struct and an interactive hex viewer