Processed on your device
Your PDF stays inside this browser tab. It is not uploaded to Doruni.
Crop PDF pages without uploading them.
Automatically trim white space and scanner edges, or draw the exact area to keep. Review and adjust each page before saving.
Drop a PDF here to crop it
One PDF · up to 50 MB · up to 100 pages
Choose a PDF to begin.
Free without an account
Use the complete tool and download the result without signing up.
Review before saving
Page previews and an explicit result step help you verify the change.
Trim every page in three clear steps.
Auto-detect unused edges or draw a keep area directly on the preview, then correct any page whose layout differs.
- 01
Choose one PDF
Doruni creates local page previews without sending the file away.
- 02
Detect or draw the crop
Auto-trim one page or the whole document, drag a keep area, and adjust individual exceptions.
- 03
Crop and download
Review the affected pages, then save the new PDF to your device.
The visible page becomes smaller. The content stays sharp.
Doruni edits PDF page boundaries instead of turning pages into screenshots, so selectable text and vector artwork remain intact where the document supports them.
- Auto-detect margins per page or reuse one crop across the document.
- The tool does not rasterize the PDF.
- Cropping is not redaction: hidden edge content may remain in the file.
Know exactly what the result means.
PDF cropping controls what viewers and printers normally show. It is designed for layout cleanup, not confidential-data removal.
Best forWhite margins, scanner borders, crop marks and inconsistent page framing.
Applied toEach page can keep its own crop, or one crop can be applied to all pages.
QualityExisting text and vector content are not recompressed.
Important limitContent outside the crop area is hidden, not permanently erased.
What to know before trimming pages.
Does cropping reduce PDF file size?
Usually not by much. Doruni changes the visible page boundary; it does not remove every object outside that boundary.
Can I use a different crop on each page?
Yes. Select a page thumbnail and adjust that page, or apply the current crop to every page when layouts match.
Will text remain selectable?
Normally yes, because pages are not converted to images. Unusual PDF features may still behave differently after any structural edit.
Can cropping safely remove private information?
No. Use a true redaction workflow for sensitive information because cropped content can remain inside the PDF.