Updated 5-26-24
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- Adobe Reader–free
- iOS Mail App for iPads and iPhone (built in–limited tools, but useful)
- Kami–open PDF in Google Drive, then open with Kami (app)
- Lumin–open PDF in Google Drive, then open with Lumin (app)
- Notability–open PDF from Google Drive in Notability; save back to Google Drive
- PDF Candy–edit PDFs, about 30 different tasks (free)