Give the page some room
Keep the whole page visible, with a little space around every edge. A contrasting surface helps you see the page boundary.
Choose soft, even light
Avoid a strong shadow across the page and move away from glare. Keeping the camera steady helps preserve small text.
Check before you save
Look at the corners, orientation, and text. Adjust the page and make sure you have captured every page you need.
Build a file you can find again
Save the PDF with a useful name and place it in a relevant folder. Open it on another synced device when you need to continue there.