Straighten a Scanned PDF
Detect and correct the skew angle on each page of a scanned PDF, processed in your browser.
Drag a scanned PDF here, or choose a file
Each page is automatically straightened if it's slightly crooked.
You can also paste a file directly (Ctrl+V or ⌘V).
This tool runs entirely in your browser. Your file is not uploaded to a server at any point.
Fixes the Slight Tilt a Scanner or Phone Camera Leaves Behind
A document that wasn't perfectly aligned on the scanner bed, or a page photographed at a slight angle, comes out with every line of text tilted the same few degrees. Filevolo measures that angle on each page by finding the rotation where the text lines line up most sharply into straight horizontal rows, then rotates the page to correct it - no manual adjustment needed.
Built for Scanned Pages, Not Text-Based PDFs
This tool rasterizes each page and works from the pattern of ink on it, which is exactly how a scanned document already exists as a PDF. A PDF made directly from a word processor is already perfectly straight and doesn't need this - running it through here would just flatten its real, selectable text into an image for no benefit.
Frequently asked questions
Related tools
Guides for this task
- How to Make a Scanned PDF Searchable
Turn a flat scan into a PDF you can Ctrl+F through and copy text from, without changing how it looks.