Need · Finalise
Resize PDF pages
Change the page size of your PDF (A4, A3, Letter, Legal or custom scale), content scaled proportionally.
Pages in three different sizes. Bringing them all to one format.— Poulpi
Change the page size of your PDF (A4, A3, Letter, Legal or custom scale), content scaled proportionally.
Pages in three different sizes. Bringing them all to one format.— Poulpi
A file assembled from different sources is almost always inconsistent: a contract exported as A4, a scanned appendix that is slightly larger, an invoice received in Letter, a diagram produced in A3. On screen nobody notices, but the moment you print it the result falls apart: the printer shrinks some pages, shifts others, margins no longer line up and the binding eats into the text. Bringing every page back to a single size before printing or binding solves the problem in one pass.
The second classic case is switching formats between continents: an American document in US Letter (216 × 279 mm) printed as-is in Europe leaves a white band at the bottom and slightly overflows on the sides. Converting it to A4 (210 × 297 mm) makes it directly printable here. Conversely, scaling up to A3 is useful for a poster, a plan, a music score, a dense table, or simply to give a comfortable read to someone who struggles with small type.
Resizing keeps proportions strictly intact: the content of each page is scaled by a single factor, then centred in the new format. Nothing is stretched or squashed, circles stay circles and letterforms keep their shape; the difference in aspect ratio between the old and the new size simply becomes a little extra margin, distributed symmetrically. Each page's orientation is respected: a landscape page in the middle of a portrait document stays landscape. You pick a standard target size — A4, A3, Letter, Legal — or a free percentage scale when you just want to enlarge or reduce everything.
In practice, resize before assembling: bringing every piece to the same size and then combining them with the merge tool gives a far cleaner file than doing it the other way round. If enlarging inflates the file, the compress tool brings it back to a reasonable size for e-mail; and if you scaled up a scan, remember it is still an image — a pass through the ocr tool will make it searchable and selectable. As always on pdfOutils: no account required, no watermark added, and your files are automatically deleted from the server after processing.
Upload
Upload your PDF file into the drop area (or drag and drop it).
Configure
Change the page size of your PDF (A4, A3, Letter, Legal or custom scale), content scaled proportionally.
Download
Download the resulting document in one click — your files are deleted automatically after processing.
Upload your PDF, choose the target size (A4, A3, Letter, Legal) or a percentage scale, then run the resize. The content is scaled proportionally and centered on the new page.
No. Scaling always preserves proportions: content is never stretched. Each page's orientation is respected too — a landscape page stays landscape.
Yes, this tool is 100% free with no usage limits. No sign-up, no credit card and no watermark added to your documents.
Yes. Your files are processed securely and automatically deleted from our servers after processing. Nobody has access to them.