In this link , one of my previous posts, I have explained how to add mupdf library as a module into an Android Studio project. You can either start with this guide or directly continue to this post. The target file to edit is mupdf.c . This file contains ndk functions in order to be called from java part. We will just add a ndk function to fetch metadata of a pdf file. Because mupdf library has a functionality to provide it, we don't need any further coding.
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