Experience sharing: A little trick allows you to easily unencrypt PDF!
Have you ever encountered the trouble of decrypting encrypted PDF? Today, like everyone else, I encountered the problem that encrypted files cannot be operated when doing PDF merging. After searching for various strategies, I finally found a feasible method, and I will summarize and share it with you.
The first method: Converting to pictures
is the first method that many people think of. It is to convert the pdf into pictures one by one, and then form a pdf, but the pdf within 10 pictures is okay, and some have 100 pictures. , it really makes people vomit blood
The second type: multi-royal browser
There is an Internet security tool in Duoyu Browser, and there are many decryption tools in it, you can try it. Click the "+" sign on the left toolbar of the homepage, find the security tool, add it and use it
