Grid Combine

Combine PDFs into a grid online, free: place multiple files side by side on one page in 2×2, 3×3 and other layouts.

Lays several different PDF files side by side on the same page — useful for comparing versions, building handouts, or condensing short documents onto one sheet.

The difference from N-up is the input: N-up arranges pages of one document, while Grid Combine places multiple independent files on a page for direct comparison.

Everything runs locally in your browser — nothing is uploaded to any server.

How to use

1. Upload several PDFs — Drop in two or more files to place side by side.
2. Choose a grid — Pick a layout such as 2×2 or 3×3 plus paper, margin and border options.
3. Combine and download — Click Apply to generate the combined PDF.

Related tools

• Merge PDF — Combine multiple PDFs in order into one file
• Adjust Pages — Preview, rotate, duplicate and delete pages, insert blank pages, then export
• Split PDF — Split per page / by range, or manually in page mode
• Extract Pages — Pick pages in page mode then extract as a new PDF
• Rotate PDF — Rotate selected pages by 90/180/270 degrees
• Reverse Pages — Flip the page order of a PDF end to end
• Split Pages in Half — Cut every page into 2 halves or a 2×2 / 3×3 grid
• N-up PDF — Place 2/4/6/9/16 pages on one sheet for printing
• Overlay / Underlay — Overlay another PDF on top of, or beneath, the base document
• Remove Blank Pages — Detect blank pages by pixel entropy, review and delete