The Problem with Automatic Destewing
If you take a photo of a document with your smartphone, the image will almost certainly be slightly rotated or "skewed." Most automated deskew algorithms try to guess the straight lines based on the text geometry. However, if your document has a complex layout, handwritten notes, or skewed charts, automated algorithms often over-correct, making the document look even worse.
Precision Manual Deskewing
Instead of relying on a black-box cloud algorithm guessing your document angle, ClientPDF provides a precision manual straightening tool.
- Micro-Rotation Control: With our interactive slider, you can rotate the specific crooked page by fractions of a degree (e.g., 1.5° or -0.8°) until it is perfectly aligned with the screen edge.
- Local Image Re-sampling: Once you determine the correct angle, our WebAssembly engine re-samples the image grid locally to lock in the new orientation without losing visual fidelity.
- Zero Privacy Risk: Your personal legal scans stay private. The entire image matrix is analyzed and straightened exclusively inside your computer's RAM.
Step-by-Step Instructions
- Drag your skewed or crooked document onto the canvas.
- Select the specific page you want to fix from the thumbnail grid.
- Use the micro-rotation slider below the image preview to manually straighten the page.
- Once the text lines perfectly parallel, click 'Export PDF'. Your browser will rewrite the matrix and download the fixed file.