
How to Annotate a PDF: Highlights, Notes, and Comments on Mobile
Highlight text, add sticky notes, and leave comments on any PDF right from your phone. No computer needed — here's exactly how, plus pro tips.
Tips, setup guides, and troubleshooting to help you get the best printing, scanning, and fax experience from your phone.

Highlight text, add sticky notes, and leave comments on any PDF right from your phone. No computer needed — here's exactly how, plus pro tips.

Going paperless as a digital nomad means being able to scan, sign, protect, print, or fax a document from anywhere. Here's how to build that mobile office.

Print shipping labels from your phone to any WiFi printer, no computer needed. Covers label sizes, whether you need a thermal printer, and the exact steps.

Print several photos on a single page from your phone using a grid or collage layout — wallet prints, passport photos, or a photo collage. Step-by-step

Fax machines are becoming obsolete, but faxing isn't. See who still relies on fax in 2026, why it refuses to die, and how to send one without owning a machine.

Turn scanned photos into editable, searchable text with OCR. Learn how to scan, extract, edit, and save text from images using your phone.

Phone not finding your wireless printer? Here are the 7 real causes — network mismatches, permissions, router settings, and more — with fixes for each.

AirPrint not working on your iPhone? Here's why it breaks and how to fix it plus what to do if your printer was never AirPrint certified.

Scan documents, receipts, and forms with your phone camera and save them as clean PDFs with OCR to make the text editable. No scanner required.