Resize PDF Pages (A4, Letter, A3 or Any Size)
Make every page of a PDF one size — A0 to A6, B5, Letter, Legal, or a size you type in mm, cm or inches — and add blank margins on any edge. Free, no upload.
Drop a PDF here or click to browse
🔒 Processed in your browser — never uploaded. Pages are re-embedded rather than re-drawn as images, so text and lines stay sharp.
Make every page the same size
A PDF assembled from different sources often ends up with pages of mixed sizes — a scan here, an exported slide there — which prints awkwardly and looks uneven on screen. Drop a PDF here, pick the size you want — the whole A series from A0 to A6, plus B5, Letter, Legal, Tabloid, the same size as the first page, or a size you type in millimetres, centimetres or inches — and choose which way round the pages should be. Then pick what happens to the content, with both choices previewed on your own page side by side. “Resize the content to fit” rebuilds each page at the new size and puts the whole original on it, resized to fit with its proportions kept, so nothing is ever cut off — you may just get white margins on two sides. “Leave the content at its printed size” does not touch the content at all and only changes the paper around it: a smaller page cuts off whatever no longer fits, a bigger one adds blank paper. Either way the content starts centred and you can drag it to choose exactly what the new size keeps, with the part that falls outside shown faded before you download. Margins are a separate question again: type a top, right, bottom or left margin and the sheet grows outwards by exactly that much on each edge, without moving anything on the page — which is how you ask for “20 mm on all four sides” rather than working out the paper size that would give it to you. Drop several PDFs at once and the sheet you pick goes onto every page of every one of them, back as a single .zip.
Private and client-side
Everything runs in your browser with pdf-lib — your PDF is never uploaded to a server, so even confidential documents stay on your device, and the tool keeps working offline. Because resizing re-embeds each page rather than rasterizing it, fonts and vector graphics stay sharp at any zoom. Choosing “Leave every page the way it is” for the direction keeps each page in its own upright or sideways shape while still unifying the paper size.
Frequently asked questions
What is the difference between the two content choices?
“Resize the content to fit” rebuilds each page at the new size and re-embeds the original resized to fit, with its proportions kept — nothing is cropped. “Leave the content at its printed size” keeps the content exactly as it prints and only changes the page around it, so a smaller page crops the edges and a bigger one adds blank margins. Both are previewed on your own page before you download, and you can drag the content to choose what a smaller page keeps. Margins are separate from both: whatever you type for the top, right, bottom or left edge grows the sheet outwards by that much, and nothing on the page moves.
Will switching to A4 or Letter distort my pages?
No. The paper size becomes uniform, and in “Resize the content to fit” mode the content is shrunk or enlarged to fit while keeping its proportions, so it is never stretched or cropped. Choosing “Leave every page the way it is” for the direction keeps each page upright or sideways exactly as it was.
Is my PDF uploaded anywhere?
No. The whole resize happens locally in your browser with pdf-lib. Your file never leaves your device and the tool keeps working offline.