Making it the default

Android asks which app should open a PDF. Pick Opensolr PDF Reader once, tap Always, and every PDF opens straight into its pages.

1. Open any PDF: from Files, Google Drive, a mail, a download.
2. In the list Android shows, pick Opensolr PDF Reader.
3. Tap Always.

• Android does not ask while another app is the default. Open Settings → Apps, open that app, then Open by default (or Set as default) and tap Clear defaults.
• Open a PDF again: the list comes back, and you pick Opensolr PDF Reader.

• Settings → Apps → Opensolr PDF Reader → Open by default → Clear defaults. The next PDF asks again.