Resize PDF & Margins
Change the paper size, add breathing room, or crop white borders away — the four page-geometry jobs in one tool.
How to resize PDF pages
- Add your PDF. Drop it above or click to browse.
- Pick an operation. Resize to a new paper size, add margin, remove margins (auto-detects white borders), or cover margin with white.
- Apply & download. Every page is rebuilt losslessly — vector content stays vector.
Frequently asked questions
Is my PDF uploaded?
No. All page transformations run in your browser.
How does “remove margins” find the borders?
Each page is rendered and scanned for the bounding box of non-white content; the crop is fitted to that (uniformly across pages, or per page — your choice). You can also enter exact millimetres.
What's the difference between cropping and reducing the page?
Keep page size crops the margins and scales the content up to fill the same paper. Reduce page size cuts the paper down so the content's physical size is unchanged.
What is the print-shop option (TrimBox)?
Instead of cutting anything, it records the trim area as PDF TrimBox/BleedBox metadata — exactly what professional printers ask for when your document needs bleed.
Does resizing blur my document?
No — pages are embedded as vector content and rescaled mathematically, not rasterized.