Crop PDF
Drag a box on the first page; the same crop is applied to every page.
Open Crop PDF →What is the Crop PDF tool?
A private way to trim the margins of a PDF: drag a box on the first page, and the same crop region is applied to every page. It runs entirely in your browser, so your document is never uploaded, and it keeps working offline after the first load.
How to use Crop PDF
- Open your PDF — Drop a PDF onto the page or click to choose a file. The first page renders so you can set the crop.
- Drag the crop box — Drag a rectangle over the area you want to keep. The crop size is shown in points, and the same proportions are applied to every page.
- Adjust if needed — Not happy with the box? Use Clear box and drag a new one until the region is right.
- Save the cropped PDF — Click Save PDF to download the trimmed file as <name>_cropped.pdf with the new crop set on all pages.
Frequently asked questions
Is my PDF uploaded anywhere?
No. The crop is applied entirely in your browser using pdf-lib, so the file never leaves your device.
Does the crop apply to every page?
Yes. You draw one box on the first page and the same proportional region is applied to all pages, which keeps multi-page documents consistent.
Does cropping delete the content outside the box?
It sets the page's crop and media box so viewers and printers only show the region you kept. The hidden content is no longer displayed or printed.
Can I crop each page differently?
No. This tool applies one crop region to the whole document by design. For per-page edits, use a tool that targets individual pages.
Does it work offline?
Yes. After the first load everything runs locally in your browser, so you can crop PDFs with no internet connection.
Tips
- Drag carefully on the first page — that single box sets the crop for the entire document.
- Use Clear box to start over if the rectangle isn't quite right before saving.
- If pages vary in size, the crop is proportional, so check a couple of pages in your viewer after saving.