Place several pages of a PDF on each sheet. This saves paper when printing and makes compact handouts or slide overviews.
Drag the PDF onto the upload box, click to browse, or open it from Google Drive. Password-protected PDFs ask for the password and are unlocked in your browser.

Under Pages per sheet, pick 2-up, 4-up, 6-up, 8-up, 9-up, 16-up or 32-up; 4-up is the default. The preview of the first sheet updates as you change settings, and the line under the file name shows how many sheets you will get.

Page ordering sets whether pages fill the grid row by row (Horizontal) or column by column (Vertical). Preserve original page size, on by default, keeps the sheets at the size of the original pages. Under More options you can change the Sheet size, the Orientation, the Margins and whether to draw Page borders.

Click Create N-up PDF. The results screen lets you preview the new PDF, download it, save it to Google Drive, open it in another tool, or delete the files.

Horizontal fills each row left to right, then moves to the next row. Vertical fills each column top to bottom. Tick Right to left document for Arabic, Hebrew and other right-to-left documents; the first page is then placed on the right.

Leave Orientation on Auto to use the sheet direction that shows the pages largest. Set Margins to None or Small when you need the extra space; the default is Medium.
Every layout starts as a grid on a portrait sheet: 2-up is two rows of one, 6-up three rows of two, 8-up four rows of two, 32-up eight rows of four, and 4, 9 and 16 are square grids. On a landscape sheet the rows and columns swap. With Orientation on Auto, the tool tries both directions and keeps the one where the pages come out bigger.
The grid is sized from the first page of the file. Later pages that are a different size or shape are fitted into the same cells, centered, without stretching. Pages turned with a rotation setting are drawn the way they're displayed, so a sideways page in a portrait file stays readable.
Margins are set in points: None is 0, Small 10, Medium 18 and Large 36. The gap between pages is half the margin, at least 4 points, and there's no gap at all with None.
On Letter paper with the default Medium margin, each original page is printed at about this share of its size:
Switching Margins to None adds two to four percentage points, and A4 lands within a few points of these. Multiply your body text size by the percentage to see what you'll actually be reading: 10 pt text at 9-up prints at 3 pt, which is past the point where most people can read it.
Widescreen slides are short and wide, so in most grids their width is what limits them, not their height. On an A4 or Letter sheet, 6-up and 8-up both print 16:9 slides at about 3.8 to 3.9 inches wide, because both use two columns on a portrait sheet. 8-up gives you two extra slides per sheet for free.
The sheet size matters as much as the count. Left on "Same as original", the sheets take the slide's own dimensions, which match no paper size, so the printer has to scale everything a second time. Set "Sheet size" to A4 or Letter and 2-up prints each slide 7.8 to 8 inches wide on a portrait sheet.
Unticking "Preserve original page size" works the other way round. Pages stay at 100% and the sheet grows to hold the grid. With Margins set to None, 2-up of A4 pages gives a sheet of exactly A3, and 2-up of Letter pages gives exactly 11 x 17 inches. Any margin makes the sheet a little bigger than that paper.
Each original page is placed on the sheet as a self-contained drawing, so text stays as text and stays selectable. Filled-in form fields are drawn into the page before arranging, so their values stay visible but can no longer be edited. Pages with no content at all, such as blank pages added by another tool, still take their slot in the grid and leave an empty cell.
Nothing is rendered to an image along the way, and each page's content is copied once, so the N-up file usually ends up close to the original's size.
There is no fixed limit. The pages are arranged on your device, so large PDFs take longer and depend on the memory available to your browser.
Yes. It runs in any modern browser, including on phones and tablets. Documents with many pages are processed faster on a computer.
Your file stays on your device. The pages are arranged in the browser and the PDF is never uploaded.