Resize PDF
Scale every page to a standard paper size like A4 or Letter.
Drop your PDF here, or click to select
Single PDF file · Max 100MB
Change the page size of a PDF without distorting it
A PDF that opens fine on screen can still be the wrong size when it matters: the page geometry is baked into each page, not into your printer. This tool rewrites that geometry. It places every page onto a fresh canvas of the size you pick (A4, A3, A5, A2, A1, A0, A6, US Letter, Legal, or Tabloid), in portrait or landscape, and scales the original content to fit that canvas while preserving its aspect ratio.
When you actually need to resize
- A document built in US Letter that has to print in Europe (or vice versa). Letter is 8.5×11 in; A4 is 210×297 mm. They are close but not equal, so printing one on the other clips edges or leaves uneven margins. Resize to the destination standard before sending it to a print shop.
- Mixed-size pages from different sources. You merged a scanned A4 contract, a Letter invoice, and an A5 receipt. Resize the combined file to one size so it prints on a single paper stock without the tray switching or auto-scaling per page.
- Oversized engineering or poster PDFs (A1/A0) that need a desk-printable proof. Scale down to A4 to check layout before committing the large-format print.
- Form or portal limits. A submission portal demands A4 and your export came out Letter — one pass fixes it.
How the scaling works
Each PDF page has a defined media box measured in points (1 point = 1/72 inch; A4 ≈ 595×842 points). The tool draws your existing page as a single scalable object onto a new page of the target dimensions, then applies a uniform scale factor equal to the smaller of width-fit and height-fit. Because the factor is uniform, a square stays square and text keeps its proportions — nothing is stretched. If the target aspect ratio differs from the source (e.g. squat Letter content onto taller A4), the content is centered and the leftover space becomes margin rather than being filled by deformation.
This is true vector rescaling, not a re-render to image, so selectable text stays selectable and vector graphics stay crisp at any zoom.
Practical tips
- Pick orientation deliberately. "A4 landscape" and "A4 portrait" are different canvases. A wide spreadsheet export usually wants landscape so it scales up instead of shrinking to fit a tall page.
- Resizing does not shrink the file. Geometry changes, but the embedded fonts and images carry over. If your goal is a smaller download, run Compress PDF afterward.
- Margins will shift when source and target aspect ratios differ, since content is centered. Check the first page before printing a long document.
When to use a different tool
- You want to trim away whitespace or a border rather than rescale onto a standard sheet — use Crop PDF, which changes the visible area (CropBox) without scaling the content.
- The page is the right size but turned the wrong way — use Rotate PDF; rotating is not resizing.
- You only need a few pages at a new size: every page here is scaled to the same target. Pull those pages out with Split PDF or Extract, resize them, then recombine with Merge.
- You're assembling photos into a document — Merge PDF & Images builds pages directly from image files.
How it works
- Upload your PDF or drag it into the upload area.
- Select the target paper size, such as A4 or US Letter.
- Click Resize to scale every page proportionally with no quality loss.
- Download your resized PDF in seconds.
Frequently Asked Questions
Which paper sizes and orientations can I resize a PDF to?
You can scale pages to A0, A1, A2, A3, A4, A5, A6, US Letter, Legal, or Tabloid, in either portrait or landscape. "A4 portrait" and "A4 landscape" are different canvases, so a wide spreadsheet usually wants landscape so it scales up rather than shrinking to fit a tall page.
Will resizing stretch or distort my pages?
No. Each page is placed on the new canvas and scaled by a single uniform factor (the smaller of width-fit and height-fit), so a square stays square and text keeps its proportions. When the source and target aspect ratios differ, the content is centered and the leftover space becomes margin rather than being deformed to fill the page.
Does resizing reduce print quality?
No. The content is rescaled as vectors, not flattened to a bitmap, so text and line art stay sharp and selectable at the new size. Embedded photos keep their original pixels; if you enlarge a small page a lot, a low-resolution photo can look softer because it's being blown up, which is the source image's limit, not the resize.
Will resizing make my PDF file smaller?
No. Resizing only changes the page geometry; the embedded fonts and images carry over unchanged, so the file size stays roughly the same. If your goal is a smaller download, run Compress PDF afterward.
How is this different from "fit to page" in a print dialog?
A print dialog's scaling is temporary and applies only to that one print job on that printer. Resizing here rewrites the PDF itself, so every future viewer, recipient, archive, or print shop sees the genuine new page size instead of relying on each person's print settings.
Can I resize only some pages of a PDF?
No. Every page in the document is scaled to the same target size. To resize only certain pages, pull them out with Split or Extract first, resize those, then recombine with Merge.