Apache PDFBox VS Open HTML to PDF

If you don't mind using java, you can use the open source Apache PDFBox library

https://pdfbox.apache.org/

It's relatively performant and it's a mature and supported codebase that can accomplish most pdf tasks.

Then, open the pdf_utils/pom.xml file and add a dependency to PDFBox, in the dependencies section:

So, when I started to view the documents, a lot of them simply failed to open. I had to look around for a library that could verify PDF documents. I had some experience with PDFBox in the past, so it seemed to be a good go-to solution. It had no way to verify documents by default, but it could open and parse them and that was enough to filter out the incorrect ones. It felt a little bit strange just to read the whole PDF into the memory to verify if it is correct or not, but hey I needed a simple fix for now and it worked really well.

PDFBox can do this. It’s not part of the CLI but it wouldn’t be too hard to add:

https://github.com/apache/pdfbox/blob/5b00807463279f1002e245...

You'll find libraries in most languages for parsing content out of PDF files, I did this most recently at work in Java using PDFBox.

Something along these lines might be a better bet: https://pdfbox.apache.org/ - no idea if that's the best one, but you should be looking for modern, full-featured PDF manipulation libraries. GhostScript is definitely NOT that - it's an ancient PostScript interpreter that barely, barely supports PDFs.

I would suggest Open HTML to PDF, which is a high-level library to build PDF using HTML strings, so you don't have to learn new complex APIs (assuming you already know HTML and CSS).

If you want to generate accessible PDF/UA compliant PDFs, I find https://github.com/danfickle/openhtmltopdf to be the only solution.

There is also https://github.com/danfickle/openhtmltopdf/ , which is a fork of flying saucer which has more features and is more actively developed :)