Nirmion
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PDF WORKBENCH / PRIVATE PROCESSING

Set a cleaner visible area for PDF pages.

Inset the visible CropBox from the top, right, bottom, and left edges on every page or only selected pages.

In-memory processing10 MB input limitUp to 500 pages
Ready for one PDFOne PDF · 10 MB maximum

Drop your PDF here.

Drag a PDF into this panel, or browse your computer to choose one.

The selected file stays only in this browser session while you work.

STEP 02 / CONFIGURE

Set crop margins in millimetres

Choose a page scope and enter the amount hidden from each edge. At least one margin must be greater than zero.

Checking the local PDF service...

Apply the same margins to every page or to a validated selection.
Hide content inward from the top edge, from 0 to 100 mm.
Hide content inward from the right edge, from 0 to 100 mm.
Hide content inward from the bottom edge, from 0 to 100 mm.
Hide content inward from the left edge, from 0 to 100 mm.
Temporary by designCrop settings and the file are held only for this request. The original page content is retained in the copy.

PRODUCT SPECIFICATION

Understand Crop PDF Pages before you process a file.

Cropping changes what a PDF viewer displays and prints, which is useful for margins, scanner edges, and consistent framing.

01

Accepted input

One unlocked PDF up to 10 MB and 500 pages, with 0-100 mm margins and an optional page selection.

02

What you receive

One PDF ending in _nirmion_tools_cropped.pdf with adjusted CropBox coordinates.

03

Important boundary

Cropping hides content from view but does not erase it. The concealed artwork can remain recoverable.

THREE-STEP WORKFLOW

From source PDF to checked result.

Margins are measured inward from the current visible page boundary.

1. Upload and validate

Choose a readable PDF and note whether its pages have different dimensions or orientations.

2. Set the operation

Select the page scope and enter edge margins. The API rejects settings that leave a page too small.

3. Download and review

Inspect pages with different sizes and print settings to ensure the framing is correct.

KNOW BEFORE YOU USE IT

Crop is not secure redaction.

This tool changes the PDF CropBox only. Hidden text, images, and vector content still exist outside the visible rectangle and may be recovered by editing the PDF.

COMMON QUESTIONS

Details that affect the result.

Does cropping permanently remove edge content?

No. It changes the normal viewing boundary while retaining the underlying page data.

Can I crop only some pages?

Yes. Choose Selected pages and enter unique page numbers or ranges.

Why was a large crop rejected?

The service requires a minimum visible width and height so the resulting page remains usable.

FREE ONLINE PDF TOOL

Crop PDF page margins online with measured insets.

Nirmion Crop PDF Pages adjusts visible page boundaries in millimetres on all or selected pages. Immediate page-range and margin validation prevents malformed crop requests.

The generated PDF preserves the source artwork and changes CropBox values only. It is suitable for presentation framing, not for removing confidential information.