How to sign a PDF on your Android phone or tablet, without having to print or scan

To properly sign a PDF on your Android phone or tablet, you'll need to download an app from the Google Play Store.

How to save a Google Doc as a PDF and share it on any device

You have the option to convert Google Docs into PDFs and either save them to your computer or send them as an email ...
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How to save any file as a PDF

Settings may vary depending on your Android phone’s manufacturer ... Tap the Share icon. Tap Print to see a PDF preview of the file. Tap the Share icon. Tap Save to Files. Then, tap "Save" in the ...