I’m still working on a web app project to add signatures to PDFs
for the backend I use pdf-lib
for the frontend I use pdf.js by mozilla to display the pdf, and interact.js to move the signature image

I have a problem with the pdf-lib coordinates in placing the signature image in the pdf

I have read several issues and already know that x y in pdf-lib uses 172 inch units
then I tried using 1/72 inch units in the CSS in interact.js
but when I use it in pdf-lib, the units in the css don’t match the units in pdf-lib

any ideas?