How to remove excess white margins from pdf pages
- Step 1Measure the margin you want to remove — Open the PDF in any viewer and estimate the white-space width on each edge in points. Reference points:
72 pt= 1 inch,36 pt= half an inch,28 pt≈ 1 cm. Word's default 1-inch margins are72 pt; LaTeXarticleclass defaults are wider still. You can subtract a little less than the full margin to leave breathing room. - Step 2Open the crop tool and drop your PDF — Load the document into the PDF Crop tool. Processing happens in your browser — the file is parsed locally and nothing is uploaded. The free tier accepts PDFs up to 2 MB and 50 pages; larger files need Pro.
- Step 3Enter the four crop values — The tool shows four number inputs —
top,right,bottom,left— each in points, defaulting to 50. For symmetric margin removal, type the same number in all four. To favour one edge (e.g. a wide binding gutter on the left), set that value higher. - Step 4Keep the numbers below the page-margin size — Each value is the distance pulled inward from that edge. Stay below the actual white-margin width so you don't clip text or graphics. If
left + rightexceeds the page width (ortop + bottomexceeds the height), the CropBox becomes invalid — reduce the values. - Step 5Run the crop — The tool applies the same CropBox to every page and produces a new PDF. The original is untouched; you get a fresh copy with the reduced visible area.
- Step 6Download and verify in a viewer — Open the result and scroll through. Because the crop is uniform across all pages, check a page with content near the edges (a footnote, a wide table) to confirm nothing important was clipped. If it was, re-run on the original with smaller values.
The four crop inputs and what they do
These are the only controls the tool exposes. Every value is in points and applies to all pages.
| Input | Effect on the CropBox | Default | Typical value |
|---|---|---|---|
top (pt) | Pulls the visible top edge down by this many points; new height = height − top − bottom | 50 | 72 for a 1-inch Word top margin |
right (pt) | Pulls the visible right edge in; new width = width − left − right | 50 | 72 for symmetric removal |
bottom (pt) | Pulls the visible bottom edge up by this many points | 50 | 72, or less to keep a page-number footer |
left (pt) | Pulls the visible left edge in; useful to shave a binding gutter | 50 | 90 if there's an extra gutter margin |
Points-to-margin reference for common exports
Estimates for the white margins typical exporters add. Measure your own file before committing — these are starting points, not guarantees.
| Source / default | Typical margin | Points | Suggested crop (leave breathing room) |
|---|---|---|---|
| Microsoft Word (Normal) | 1 inch all sides | 72 pt | 60 per side |
| Word (Narrow) | 0.5 inch all sides | 36 pt | 28 per side |
| Google Docs (default) | 1 inch all sides | 72 pt | 60 per side |
LaTeX article (default) | ~1.5 inch sides | ~108 pt | 90 per side, measure first |
| Letter page (612×792 pt) | n/a — page size | 612 × 792 | keep left+right < 612, top+bottom < 792 |
Cookbook
Concrete crop settings for the most common white-margin situations. Values are in points; remember the same crop hits every page.
Symmetric 1-inch margin removal (Word default)
A Word document with default 1-inch (72 pt) margins. Shave 60 on each side to remove most of the white space while leaving a small buffer so no text touches the new edge.
Inputs: top: 60 right: 60 bottom: 60 left: 60 Letter page (612 × 792 pt) becomes: CropBox = (60, 60, 492, 672) new visible area: 492 × 672 pt → ~16% of width and height of white border removed each side
Wider crop on the binding gutter
A report formatted for double-sided printing has an extra gutter margin on the left. Crop the left edge harder than the right so content centres on screen.
Inputs: top: 60 right: 55 bottom: 60 left: 95 Letter page (612 × 792) becomes: CropBox = (95, 60, 462, 672) → content shifts visually toward centre; gutter gone
Trim a LaTeX article's wide side margins
LaTeX's default article class leaves roughly 1.5-inch side margins. Crop sides aggressively, top/bottom lightly.
Inputs: top: 50 right: 90 bottom: 50 left: 90 → measure the actual margin first; LaTeX margins vary by documentclass and geometry package settings
Light cleanup that keeps the footer
You want to tighten the page but the bottom margin holds a page number you must keep visible. Crop the bottom less than the others.
Inputs: top: 60 right: 60 bottom: 20 left: 60 → top and sides tighten; footer page number stays inside the CropBox because bottom is only pulled in 20 pt
Crop a tiny text PDF that's already small
Cropping does not shrink the byte size meaningfully — it only sets a display rectangle. If your goal was a smaller file, crop is the wrong tool.
Before: report.pdf 340 KB Inputs: top/right/bottom/left = 60 After: report.pdf ~340 KB (size essentially unchanged) → for smaller files use /pdf-tools/pdf-compress-lossless
Edge cases and what actually happens
Crop value larger than the page margin clips real content
ClippedEach value pulls inward from the edge regardless of where the white space ends. Set top: 120 on a page whose top margin is only 72 pt and you hide the first line of text. The text is still in the file (CropBox only hides it), but it won't display. Measure the margin first and stay below it; re-run on the original with smaller values if you over-cropped.
left + right exceeds the page width
invalid crop boxThe visible width is computed as width − left − right. If your two horizontal values add up to more than the page width (e.g. left: 350 + right: 350 on a 612 pt page), the result is zero or negative width — an invalid CropBox that viewers may render as a blank or collapsed page. Keep left + right below the page width and top + bottom below the height.
Same crop applied to a mixed-size document
By designThe tool applies one CropBox to every page. If your PDF mixes portrait and landscape pages, or A4 and Letter, a single set of values won't suit all of them — a value safe for the large pages may clip the small ones. Split the document by size first with PDF Extract Pages, crop each group separately, then merge.
Cropped content is still inside the file
PreservedCropping is non-destructive: it sets a CropBox, it does not delete anything. A recipient can remove the CropBox in Adobe Acrobat (or any editor) and the margins reappear. This is good for reversibility but means crop is not a redaction tool — to make the trim permanent, flatten after cropping; to remove sensitive content, use the PDF PII Redactor.
File over the 2 MB free-tier limit
Free tier limitFree accounts cap PDF input at 2 MB and 50 pages. A margin-heavy Word export is usually well under that, but image-laden or long documents can exceed it. Pro raises the cap to 50 MB / 500 pages. If the file is large only because of images, compress it first with lossless compression, then crop.
Page has a non-zero rotation flag
SupportedIf pages were rotated via a /Rotate entry (common in scans), the CropBox is applied in the page's unrotated coordinate space, so a crop that looks like 'top' may visually land on a side after rotation. If results look off, normalise orientation first with PDF Rotate, then crop.
You expected the file to get smaller
ExpectedCropping changes the display rectangle, not the stored content, so byte size barely moves — the hidden margin content is still there. If shrinking the file is the goal, crop won't do it; use lossless or lossy compression instead.
Encrypted / password-protected PDF
SupportedThe loader opens documents with encryption ignored, so a CropBox can usually be applied to a protected file. If a strongly encrypted file fails to parse, remove the password first with PDF Unlock or Remove Password, then crop.
Frequently asked questions
How do I know how many points to crop?
Measure the white margin in your viewer and convert: 72 pt = 1 inch, 36 pt = half an inch, 28 pt ≈ 1 cm. Word's default margins are 72 pt; its 'Narrow' preset is 36 pt. Start a little below the measured margin (say 60 pt for a 72 pt margin) so you remove most of the white space without risking clipped text, then tighten on a second pass if needed.
Does the crop apply to every page or can I choose pages?
Every page. The tool exposes four inputs — top, right, bottom, left — and applies that single CropBox uniformly across the whole document. There is no page-range field. If different pages need different crops (for example a mixed portrait/landscape file), split the document with PDF Extract Pages, crop each part, and merge the results.
Is cropping reversible?
Yes. Cropping sets a CropBox — it hides content outside the box but doesn't delete it. The original page geometry is still in the file, and anyone can remove the CropBox in Adobe Acrobat or another editor to restore the margins. If you need the trim to be permanent, run PDF Flatten after cropping.
Will cropping make my PDF file smaller?
Not meaningfully. Because the content outside the CropBox is preserved (just hidden), the byte size stays roughly the same. Cropping is about display, not file size. For a smaller file use lossless compression for text documents or lossy compression for scans.
Can I crop different amounts on each side?
Yes. The four inputs are independent, so you can shave a wide left binding gutter more than the right, or keep a footer by cropping the bottom less than the top. Just make sure left + right stays below the page width and top + bottom below the height, or the CropBox becomes invalid.
What happens if I crop too much?
Any content that falls outside the new CropBox is hidden — including text or graphics if you crop past the margin into the content. Nothing is deleted (the data is still in the file), so just re-run the tool on the original with smaller values. Leave a few points of buffer below the actual margin width to be safe.
Is my document uploaded to a server?
No. The PDF is parsed and the CropBox is written entirely in your browser; the file never leaves your device. The only thing recorded server-side is an anonymous usage counter when you're signed in — no document content. This matters for the kinds of documents people crop, like contracts and internal reports.
Will the cropped PDF print correctly?
Yes, but with the smaller visible area — most printers print the CropBox region. The reduced margins mean less white border on the printed page. If you crop too tight, some printers may clip content near the edge; leave a small margin if the file is for print rather than screen reading.
Can I preview the crop before downloading?
Run the tool and open the resulting PDF in any viewer to check it. Because the same crop hits every page, look at a page with content near the edges (a footnote or wide table) to confirm nothing got clipped. If it did, re-run on the original — the original is never modified.
My PDF mixes portrait and landscape pages — what now?
A single crop can't suit both orientations: a value that's safe for landscape pages may clip portrait ones. Split the file by orientation first (use PDF Extract Pages), crop each set with appropriate values, then recombine with PDF Merge.
How big a PDF can I crop?
The free tier accepts PDFs up to 2 MB and 50 pages. Pro raises that to 50 MB and 500 pages, and higher tiers go further. Crop itself is lightweight (it just sets a CropBox), so the limit is about input size, not processing cost.
What units does the tool use — can I enter inches or cm?
Points only. PDF coordinates are natively in points, so the four inputs take point values. Convert before entering: 72 pt per inch, roughly 28.35 pt per centimetre. A 1-inch margin is 72 pt; a 2 cm margin is about 57 pt.
Privacy first
All PDF processing runs locally in your browser using PDF-lib and pdf.js. No file is ever uploaded — only metadata counters are saved for signed-in dashboard stats.