pdf-lib VS pdfsam

I'm facing that same pain point of programmatic PDF filling. I noodled around in the PDF format and learned it's a bit difficult to deal with fonts and formatting. But I think this client-side library works well enough, as a start: https://pdf-lib.js.org/#:~:text=a%20single%20document.-,Fill...

I've also heard of one paid API that I forgot but seemed to work well, and this related service https://www.jotform.com/, and I also considered porting some server-side libraries to WASM. One day I'll collect all the libraries and findings in a blog post.

Are you looking to programmatically fill any PDF form by detecting the fields? Or are you filling one known PDF template?

Thanks! For PDF form filling, I use the APIs that pdf-lib [0] exposes. That includes text fields, checkboxes, radio buttons, dropdowns and options lists. Give it a try and let me know if you find a type of form field that's missing.

[0] https://github.com/Hopding/pdf-lib

I do not know if some plugin exists, but maybe you have to take a look at https://pdf-lib.js.org/

PDFmake or pdf-lib would be the way to go in my opinion.

Sure! You can build your own PDF editor with a combination of PDF.js and PDF-lib

I stand on the shoulders of giants, namely PDF-lib, PDF-js and React-beautiful-DND – everything else is pretty much custom code.

How one can use a library such as PDF-Lib (npm, website) that:

I built my side-project https://pdfvise.com/ using https://pdf-lib.js.org/ for pdf manipulations.

I find pdfsam to be the perfect offline tool for me on Windows.

https://pdfsam.org

And it's open source as well: https://github.com/torakiki/pdfsam

This thread may be relevant.

That might be fit for your purpose PDFSam

*https://pdfsam.org/

use pdfsam.org to split the pdf into individual sheets fyi

PDFsam - merge, split, extract pages, rotate and mix your PDF files

PDF Sam is open source and can handle that https://pdfsam.org/

I have used tools, like PDFsam, to insert, delete, reorder, and rotate pages in existing PDFs. It's a great tool, but it's not a complete PDF editor.