N-up PDF

将多张 PDF 页面合并到一张纸上（N-up）以节省纸张与文件体积。文件永不离开您的设备 — 所有处理均在浏览器本地完成。

设计即私密

您的文件永不离开您的设备。所有处理均在浏览器本地完成 —— 无上传、无服务器。

N-up PDF imposes multiple source pages onto each output sheet. Choose a preset (2-up, 4-up, 6-up, 9-up, 16-up) or a custom NxM grid, set the output paper size and orientation, and the tool packs that many pages per sheet on a new PDF — fully local in your browser, so your file is never uploaded. The page aspect ratio is preserved inside each cell.

工作原理

如何使用 N-up PDF

1
Drop your PDF. Drag and drop a PDF file onto the drop zone, or click to choose a file.
2
Choose a preset or grid. Pick pages-per-sheet (2/4/6/9/16) for an auto-fit grid, or enter a custom NxM grid. Orientation (portrait/landscape) and paper size (A4/Letter) set the output sheet.
3
Click Run N-up PDF. Your browser groups source pages into sheets and draws each page into its cell with aspect ratio preserved.
4
Preview and download. Preview the N-up result and download the new PDF.

功能

此工具的功能

Preset grids: 2-up, 4-up, 6-up, 9-up, 16-up
Custom NxM grid control
Portrait or landscape output, A4 or Letter
Aspect ratio preserved inside each cell
No upload — runs entirely in your browser

限制

须知事项

Dense grids (9-up, 16-up) produce small cells — best for overviews, not reading
Partial final sheets are padded with blank cells rather than dropping pages
Per-page cropping/bleed is not applied; source pages keep their full media boxes

常见问题

常见问题解答

What does N-up mean?

N-up means placing N pages onto each output sheet. For example, 4-up places a 2x2 grid of pages on every sheet, so a 20-page document becomes 5 4-up sheets.

Is grid auto chosen?

With the preset options, grid is auto chosen to fit the page aspect ratio. To force a layout, use a custom NxM grid.

My page count is not a multiple of the sheet size — are pages lost?

No. The final sheet is padded with blank cells, so every source page is retained.

My file is uploaded?

No. The processing runs locally in your browser using pdf-lib. Your file is never uploaded.