Crop PDF
Trim margins by dragging a crop box over the page.
Trim a PDF in seconds: cut off white margins, remove headers or focus on part of a page. Drag the crop box on a live preview and apply it to every page or just some.
How to crop a PDF
- Choose your PDF.
- Drag the crop box or enter margin percentages.
- Click “Crop PDF” and download.
Frequently asked questions
How do I trim a PDF?
Open the PDF here, drag the crop box so it covers only the part you want to keep, and choose whether to trim the current page or all pages. Click “Crop PDF” and download the trimmed file. Trimming and cropping a PDF are the same thing.
Is cropped content deleted?
Cropping hides content outside the box in every viewer. To permanently remove sensitive content, use Redact PDF instead.
Is it really free?
Yes. There is no sign-up, no daily limit and no watermark added to your files.
Are my files uploaded to a server?
No. ModifyPDF processes files with JavaScript inside your browser. Your documents never leave your device, and nothing is stored after you close the page.
Crop by drawing a box
Drag a box over the area you want to keep and everything outside it is trimmed away, removing wide margins, scanner edges or unwanted headers. Apply the crop to the current page only or to all pages.
What cropping does
Cropping sets a new visible area for the page. Text inside the box stays selectable and searchable, and nothing is re-rendered or recompressed.
Common uses
Trimming wide white margins so pages are easier to read on a phone or e-reader, removing the dark edges from scans, or cutting a single chart or table out of a page to share.
Crop or trim: the same job
Trimming a PDF and cropping a PDF mean the same thing: making the visible page smaller by cutting off its edges. Draw the box once and apply it to all pages to trim a whole document, such as a scanned book or slides exported with wide borders, in a single step.
Cropping is not redaction
Content outside the crop box is hidden from view but can remain in the file. If you are cropping to hide something confidential, use Redact PDF instead.