Pdf.js not found in the library error. I have followed the steps in the manual i created pdf.js folder inside library and i placed the build and web inside the pdf.js folder then renamed the pdf to pdf.js at the pdf.worker to pdf.worker.js but i still get the error. Please help
Did you correctly extracted the pdf.js files like explained in Opigno user manual, so that pdf.js is reachable from sites/all/libraries/pdf.js/build/pdf.js?
Did you check the ownership and permissions for this folder and files? Apache user should be able to read them.
Why did you rename all the js files ? After extracting the files it should be fine without any additional step to rename files.
Regarding permissions I cannot tell you in case of a Windows environment, I always had very bad experiences with Windows servers and file permissions. But I assume that you can find some tutorials on the internet. You just need to give the ownership to web user and read/write/execute permission to him. Otherwise, just to test, you can give permissions to everybody for this folder and all the subfolders and files inside.
another question !