A scanner is not needed for most paperwork. A phone camera, decent light and two minutes are enough, as long as you avoid a few common mistakes.
Set up the shot
Use a plain dark table, switch on the room light and turn off the flash. Flash creates a white glare patch that hides text. Hold the phone parallel to the page.
Take every page the same way
Keep the same distance and orientation, with all four corners visible. If the pages look very different in size, the final PDF will look messy.
Combine into one PDF
Add the photos to the JPG to PDF tool, put them in order, choose A4 and medium quality, and save. Check that every line of text is readable before you send it.
Free, no signup, and your files never leave your device.
Open JPG to PDFCommon questions
Do I need a scanner app?
No. A normal camera photo works fine for most forms. Apps only add auto-cropping and clean-up.
Why is my scan dark or yellow?
Usually the light is warm or uneven. Move near a window and avoid shadows from your hand.
Also useful: Image Resizer.
Topics
scan document with phonephone scanner pdfphoto to pdfscan id carddocument photo tips