Tiny Online Tools logoTiny Online ToolssearchSearch tools…grid_viewAll Tools
Homechevron_rightPDF Toolschevron_rightPDF Margin AdjusterPDF Margin Adjuster

PDF Margin Adjuster

Add, remove, or resize the margins on every page of a PDF with exact control over top, right, bottom, and left values in points, millimeters, or inches.

upload_file

Click to browse or drag & drop files here

Select a PDF

Accepted: .pdf,application/pdf

Similar Tools

PDF Crop Tool

PDF Crop Tool

Crop and trim white margins from PDF pages automatically or with manual margin control.

PDF Annotation Remover

PDF Annotation Remover

Remove or flatten comments, highlights and review markup in a PDF — filtered by type, author, date or page, with a count of exactly what will go.

PDF Duplicate Page Remover

PDF Duplicate Page Remover

Automatically detect and remove duplicate pages from a PDF based on a visual fingerprint. Clean up scanned or merged documents in seconds.

PDF Form Field Inspector

PDF Form Field Inspector

Inspect every AcroForm field in a PDF: name hierarchy, type, flag bits, export values, coordinates and appearance problems.

PDF Ink Coverage Analyzer

PDF Ink Coverage Analyzer

Estimate CMYK ink coverage and total area coverage page by page, with a heat map showing where a PDF exceeds your press limit.

Reverse Video

Reverse Video

Reverse Video helps you make a clip play backward for creative or review use directly in your browser. Use it for fast, private media cleanup, publishing, lessons, demos, and everyday video or audio editing.

PDF to JPG

PDF to JPG

Convert PDF pages into high-quality JPG images.

apps

More Tools

Browse our full collection of free online tools.

Adjust PDF Margins Online — Free & Private

Add extra whitespace for binding, shrink bloated margins to save paper, or crop into overscan — this free online PDF margin adjuster lets you set precise margins on every page of a PDF. Works entirely inside your browser so your documents never leave your device.

How it works

  1. Select a PDF — drag and drop or click to browse.
  2. Choose a unit: points (pt), millimeters (mm), or inches (in).
  3. Enter margin values for top, right, bottom, and left. Positive numbers add whitespace; negative numbers crop into the existing page.
  4. Click Apply margins. Each page is re-assembled onto a new canvas with your margins and the result is ready to download.

Handy presets

  • Zero all — start from no margin (useful when you plan to crop).
  • 0.5 in preset — applies a half-inch margin on every side (36 pt).
  • Crop −20 — subtracts 20 units from each side, handy for removing scanner overscan.

Common use cases

  • Preparing to print — add gutter space so text isn't cut off by printers or binding.
  • Matching templates — bring a PDF into line with a letterhead or publication template.
  • Removing excess whitespace — tighten eBook-style PDFs for on-screen reading.
  • Unifying mixed-source documents — make merged reports look consistent.
  • Reducing file size — cropping empty space can shrink output slightly.

How it works under the hood

Each source page is embedded and placed on a freshly sized page. New page dimensions become originalSize + (top + bottom, left + right). Because the content is drawn, not just reframed, it works correctly even when negative margins shrink the page.

Privacy

All computation happens locally. Your PDF is never uploaded. Use the tool on any modern browser, desktop or mobile.

Related tools

  • Crop PDF — crop pages with a visual selector.
  • Rotate PDF — change orientation before adjusting margins.
  • Compress PDF — shrink file size after editing.