PDF viewer in chromium? [duplicate]
Solution 1:
Do you have Google Chrome installed? If you do have it installed, you can just make a link to the libpdf.so plugin in the Chromium folder:
sudo ln -s /opt/google/chrome/libpdf.so /usr/lib/chromium-browser/
After that, enter about:plugins in Chromium, search for Chrome PDF Viewer and enable it.
If you don't have Google Chrome already installed, I suggest you to download the .deb package and extract it. Then, you must navigate to the folder data/opt/google/chrome and copy the libpdf.so to the /usr/lib/chromium-browser/. More details.