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HexaPDF Extras - Additional functionality for the HexaPDF library
2 projects | reddit.com/r/ruby | 7 Aug 2022
I have just released my new gem hexapdf-extras which provides additional functionality on top of the HexaPDF library.
Understanding Text in PDF
2 projects | reddit.com/r/pdf | 29 Jul 2022
Regarding TrueType font support: What I meant was that the library isn't a full TrueType font library but contains just the parts necessary for PDF supports. So what it can do is write a subset of a TrueType file because that's needed. But it can't serialize any arbitrary TrueType tables and it only handles those TrueType tables needed for displaying text in PDF. More advanced things like glyph positioning based on the language and characters in question is also not supported but may be in the future. Have a look at https://github.com/gettalong/hexapdf/tree/master/lib/hexapdf/font/true_type/ to see the implementation. All the things in this folder and below should be independent of PDF.2 projects | reddit.com/r/pdf | 29 Jul 2022
TrueType subsetting mainly consists of generating the necessary glyph and various index tables, and copying over all the other necessary tables which don't need to be adjusted. See https://github.com/gettalong/hexapdf/blob/master/lib/hexapdf/font/true_type/subsetter.rb for what is needed to subset.
What do you use ruby for?
5 projects | reddit.com/r/ruby | 4 Jul 2022
for all my PDF processing needs, courtesy of HexaPDF,
One Class/Module per File Rules - Working With Nested Modules
3 projects | reddit.com/r/ruby | 27 Jan 2022
Break the "rules" if need be. There is no need to separate out small classes into their own file because "something says so". If one were to look for the file of such a class, they would see there isn't one and automatically look into the file of the parent module/class. See e.g. https://github.com/gettalong/hexapdf/blob/master/lib/hexapdf/type/annotation.rb
[WIP] Creating Digital Signatures for PDFs with HexaPDF
3 projects | reddit.com/r/ruby | 14 Dec 2021
I'm currently in the process of adding support for digital signatures to HexaPDF.3 projects | reddit.com/r/ruby | 14 Dec 2021
The code for all this is in the devel branch if you want to try it out.
Free / low cost software to remove a page from PDF on Windows 10?
2 projects | reddit.com/r/pdf | 6 Nov 2021
There are a variety of command line tools like HexaPDF and qpdf that can do this; however, they need to be used on the command line.
Hooking into RDoc for better documentation with automatically executed examples
2 projects | reddit.com/r/ruby | 21 Oct 2021
After I got some feedback about missing examples in the API documentation of HexaPDF, I decided to do something about it.
Read, write, and edit PDF files with borb, a pure Python library
8 projects | news.ycombinator.com | 18 Sep 2021
If you want to do something like this in Ruby, have a look at HexaPDF - https://hexapdf.gettalong.org/ - which provides a full-blown implementation for reading and writing PDFs and is quite mature already (n.b. I'm the author).
It is licensed AGPL+Commercial but if you just use it for yourself, this does not matter as you can use the AGPL.
What are some alternatives?
Prawn - Fast, Nimble PDF Writer for Ruby
Wicked Pdf - PDF generator (from HTML) plugin for Ruby on Rails
Pdfkit - A Ruby gem to transform HTML + CSS into PDFs using the command-line utility wkhtmltopdf
CombinePDF - A Pure ruby library to merge PDF files, number pages and maybe more...
RGhost - RGhost is a document creation and conversion API. It uses the Ghostscript framework for the format conversion, utilizes EPS templates and is optimized to work with larger documents. Support(PDF,PS,GIF,TIF,PNG,JPG,etc)
Grover - A Ruby gem to transform HTML into PDFs, PNGs or JPEGs using Google Puppeteer/Chromium
Shrimp - a phantomjs based pdf renderer
Gimli - Utility for converting markup files to pdf files