5 min read · Updated 2026-08-09
Straighten skewed phone photos of forms
Fix trapezoid desk photos before you email or upload — corner placement, filters, and multi-page packets.
Why phone photos look trapezoid
Cameras sit above one edge of the page, so the far edge looks narrower. Portals and markers prefer a flat rectangle. Perspective straighten maps the four paper corners onto a rectangle so lines read level.
Corner placement tips
Put each handle on the paper corner, not the desk or shadow. If the output looks stretched, one handle is usually off the page — reset and try again. Even lighting beats aggressive filters.
From one photo to a multi-page PDF
Straighten each page, download JPGs, then use JPG to PDF in order. Compress the PDF if email still rejects the attachment.