Trim margins or crop to a custom area on any PDF, page-by-page or all at once.
Why use this
Visual crop with live preview: Drag the corner handles and watch the keep area update in real time. No guessing margin values blind.
Auto-detect content bounds: Click auto-detect and PDFWix snaps the crop to the smallest box containing visible content — perfect for trimming whitespace on phone-camera scans.
Apply per page or globally: Crop every page identically (common for letterhead removal) or apply different crops per page range when documents are mixed.
Reversible by design: Cropping changes the visible box, not the underlying content. Re-crop with different bounds any time — your original page data is preserved.
No quality loss: Image and text data are untouched, so cropped pages look pixel-identical to the source within the new bounds. Print fidelity is preserved.
Use cases
Trimming the white edges off scanned documents from a flatbed scanner
Removing recurring corporate letterhead from a downloaded form before printing
Cleaning phone-camera scans where the page is surrounded by desk or background
Cropping a wide landscape PDF down to a portrait reading area for a phone screen
Removing footer disclaimers or page numbers that aren't needed in a printed handout
How it works
Upload your PDF — Click "Select PDF file" or drag the document into the upload box. The first page renders in the cropping view ready for you to draw bounds.
Drag the crop bounds — Drag the corner handles to set the keep area visually, type exact margin values in mm/inches, or hit auto-detect to snap to content bounds (great for scans with white edges).
Apply to all pages or a range — Use the same crop on every page (typical for letterhead) or pick a page range when only some pages need trimming after a merge.
Download the cropped PDF — PDFWix updates the crop box in your browser and saves a new file. Your original isn't modified — and the crop is reversible if you re-crop later.
Frequently asked questions
Does cropping reduce file size?
Not significantly. Cropping changes the visible page box but the underlying content is preserved, so the file size stays roughly the same. To shrink the file, run [Compress PDF](/compress-pdf) after cropping.
Can I crop different pages differently?
Yes. Apply one crop globally, or pick a page range and use a different crop. Useful when a merged PDF has pages from sources with different margins.
What's auto-detect crop?
Auto-detect analyzes each page and snaps the crop to the smallest box containing visible content — perfect for stripping uneven white space off phone-camera scans without measuring.