Add Margin

What is Add Margin?

Add Margin increases the space around every page in a PDF, pushing the existing content inward to create a uniform border. The margin is applied in points (1 point = 1/72 inch), and every page in the document receives the same treatment — the page dimensions grow by twice the margin value on each axis.

The tool uses pdf-lib to resize each page and translate its content stream by the margin offset. For example, a 20-point margin adds 20 points of space on all four sides, making a standard letter page (612 × 792 points) grow to 652 × 832 points. The original content is shifted inward by the margin amount, preserving its layout exactly.

This is a metadata-level operation — the content itself is not re-rendered or re-encoded. Text, images, fonts, and annotations remain identical; only the page boundary moves outward. The result is a PDF where the original content sits centered within a larger canvas.

How to Use Add Margin

1. Drop a PDF file onto the upload zone, or click to browse and select it. The tool accepts any standard PDF, regardless of page count or size.
2. Enter a margin size in points. The default is 20 points (about 0.28 inches). Common values: 36 points = half an inch, 72 points = one inch, 144 points = two inches. The margin is applied equally to all four sides.
3. Click Add Margin. The tool loads every page, resizes it by adding the margin to both width and height, and translates the content stream inward by the margin offset. This happens sequentially for each page in the document.
4. A download button appears with your file, automatically named margins-added.pdf. The file size may increase slightly due to the larger page dimensions.
5. If you need asymmetric margins (different values for top/bottom vs left/right), process the document twice — first with one value, then the other won't work since it applies uniformly. For asymmetric needs, use the Crop Pages tool in reverse or a dedicated layout tool.

Why Use Add Margin?

Print-ready documents often need extra margin for binding, hole punching, or stapling. If a PDF was created with tight margins that risk cutting off content at the edges — common with exported presentations, scanned documents, or auto-generated reports — adding margin is the fastest fix without re-exporting from the original application.

Designers and presentation teams use it to create consistent white space around exported slides or mockups, giving documents a cleaner, more professional appearance when shared or printed. Academic papers submitted for review frequently require specific margin sizes (e.g. 1-inch all sides), and this tool adjusts any PDF to meet those requirements.

Legal filings and formal submissions often have strict margin requirements. Rather than reformatting the source document, adding margin to the final PDF ensures compliance with court or institutional formatting rules.

Privacy & Security

Your files never leave your browser. Every step — reading, resizing pages, and writing the output — happens on your own device using a PDF engine compiled to WebAssembly. Nothing is uploaded to Racira's servers, no copies are stored in the cloud, and no file data is transmitted at any point. For confidential documents like contracts, medical records, or financial statements, this means the tool is suitable for material you would not trust to an upload service.

Frequently Asked Questions

Does adding margin change the content size?

No. The content itself is not scaled or resized — only its position on the page shifts inward by the margin amount. Text, images, and layout remain identical; the page simply gets larger around them. Font sizes, image resolution, and vector graphics are all preserved at their original quality.

Can I add different margins to different pages?

Not in a single operation. The tool applies the same margin value to every page. If you need different margins per page, split the document into sections, process each with its own margin value, and recombine using the Merge tool.

What unit is the margin measured in?

Points. There are 72 points per inch, so a margin of 72 creates a one-inch border on each side. A margin of 36 creates a half-inch border. For reference: a standard US Letter page is 612 × 792 points (8.5 × 11 inches), and A4 is 595 × 842 points (210 × 297 mm).

Will the larger page size affect printing?

The page dimensions change, so if you print on a fixed paper size, the printer may scale the content to fit. Most PDF readers offer a "fit to page" option that handles this automatically. If you need the content at a specific print size, consider adding margin before or after adjusting the page size.