PDFクロップ
PDFマージンや寸法をビジュアルにドラッグで調整してクロップ。
100% client-side · pdf-lib · no upload
Drop a PDF to read page dimensions.
⬇ Download cropped PDFHow to crop a PDF
- Drop your PDF onto the picker.
- Set the margin (in points) to trim from each side.
- Press Crop PDF and download the result.
1 inch = 72 pt · 1 cm ≈ 28.35 pt. A4 = 595×842 pt; US Letter = 612×792 pt.
Common use cases
- Scanner borders: chop the 10–20 mm of white space around scanned pages.
- Header/footer removal: trim oversized title bars or page numbers.
- E-reader formatting: shrink margins so reading apps render text larger.
Related: Rotate PDF Pages · Split PDF · Compress PDF · All PDF tools
よくある質問
- Does cropping discard the trimmed content?
- No — cropping in PDF is a viewport change. The underlying content is preserved; viewers just clip to the new media box.
- What units does the crop use?
- Points (1 pt = 1/72 inch). An A4 page is 595×842 pt. Most viewers display in points natively.
- Is the PDF uploaded?
- No. pdf-lib runs locally in your browser. The file is processed in memory and never reaches a server.
- Can I crop only some pages?
- This tool crops uniformly across every page. For per-page cropping, split the PDF first, crop each, then merge.
Last updated: By jarvisbox