# Crop PDF - Remove White Margins from PDF Pages Online

> Free online PDF cropper: detect each page's content area and trim the white space, or set margins by hand with a live preview. Stays vector, text selectable.

- URL: https://qilingtools.com/en/pdf/crop
- Category: PDF Tools (https://qilingtools.com/en/pdf)
- Tags: [PDF](https://qilingtools.com/en/tags/pdf), [Documents](https://qilingtools.com/en/tags/document), [Printing](https://qilingtools.com/en/tags/print)
- Last updated: 2026-10-26
- Price: Free, no sign-up
- Privacy: Runs locally in the browser; files are never uploaded

Trim the wasted white space around a PDF so the content fills the screen. After upload each page is scanned for the area that actually has content; choose one shared crop for every page (uniform page size) or crop each page tight to its own content, or switch to manual mode and type the margins yourself. The blue frame in the preview shows exactly what will be kept. Cropping adjusts the page CropBox rather than rasterising, so text stays selectable and searchable — ideal for reading papers and scanned books on a Kindle or tablet. Everything runs locally and files are never uploaded.

## How to use

1. Upload a PDF and wait for the content scan
2. Choose auto-crop or type margins manually, and check the blue frame in the preview
3. Click Crop & download to get the cropped PDF

## Features

- Detects the content area and removes margins in one click
- One shared crop, or a tight crop per page
- Live visual preview of what is kept
- Stays vector — text remains selectable

## FAQ

### Is the text still selectable after cropping?

Yes. The tool only adjusts each page’s CropBox and MediaBox; nothing is re-rendered as an image, so text, links and vector graphics are untouched.

### Shared crop or per-page crop?

Pick the shared crop for printing or a tidy uniform layout; pick per-page when you are reading on a small screen and want the content as large as possible.

### Does it work on scans with grey edges?

Yes. The background colour is taken as the median of the four corner pixels, so white and grey scans both work. If the edges have black frames or speckles, use manual mode instead.

### Are my files or data uploaded?

No. Everything runs locally in your browser with no network upload, and is discarded when you close the page.

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