N-up PDF

將多張 PDF 頁面合併到一張紙上（N-up）以節省紙張與檔案大小。您的檔案永遠不會離開您的裝置——所有處理都在您的瀏覽器中本地進行。

設計即隱私

您的檔案永遠不會離開您的裝置。所有處理都在瀏覽器中本地進行 — 無上傳、無伺服器。

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.

運作方式

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

此工具的用途

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

注意事項

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

常見問題

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.