Resize PDF Pages
Change your PDF to A4, Letter, Legal, A3 or any custom page size. The text stays sharp because pages are rescaled, not re-photographed.
Drop your PDF here to change its page size
or click to browse. Resize several files at once. Nothing is uploaded.
What does resizing a PDF page do?
Resizing a PDF changes the physical dimensions of its pages. A document set to US Letter becomes A4, a poster-sized page shrinks to something a desktop printer can handle, or a set of mismatched pages is brought to one consistent size. This is a different job from compressing a PDF, which leaves the page dimensions alone and reduces the file size instead.
The reason it matters is that page size is baked into the document. Printers reject or silently rescale pages that do not match their paper, which is how you end up with cut-off headers or unexpected white bands down one side. Getting the size right in the file removes that guesswork.
This tool rescales the actual page content rather than re-photographing it. Text stays text, vector graphics stay vector, and everything remains sharp at any zoom level and on any printer. Links and annotations are scaled along with the page instead of being thrown away, and the file size stays close to the original.
How to resize a PDF
- Upload your PDF: Drag one or more PDFs into the drop area, or click to browse. Every file in the queue is resized with the same settings.
- Pick a target page size: Choose A4, Letter, Legal, A3, A5 or Tabloid from the list, or select Custom size and type exact dimensions in millimetres, inches or points.
- Choose an orientation: Keep each page's orientation is the safe default and preserves portrait and landscape pages as they are. Force portrait or Force landscape apply one orientation to the whole document.
- Decide how the content should scale: Fit inside the page scales everything down until it all fits, so nothing is ever cut off. Fill the page scales up until the page is covered, which can trim the edges. Do not scale keeps the content at its original size and simply recentres it on the new page.
- Add a margin if you need one: Enter an extra margin to add white space around the content. This is the fix when a printer clips text near the edge of the paper.
- Resize and download: Click Resize PDF. Each file reports the size it started at and the size it ended at, and you can download files individually or all together as a zip archive.
A4 and Letter are not the same, and the difference shows
Most of the world uses A4, which is 210 by 297 millimetres. The United States and Canada use Letter, which is 216 by 279 millimetres. A4 is 6 millimetres narrower and 18 millimetres taller. That gap is small enough that a document often looks fine on screen and only causes trouble at the printer.
Print an A4 document on Letter paper and the extra height has nowhere to go, so the bottom of each page is either cut off or the whole page is shrunk, throwing off your margins. Go the other way and you get an uneven white band. Converting the page size properly, with Fit inside the page selected, scales the content so it lands correctly on the target paper with even margins on all sides.
Choosing the right scaling mode
Fit inside the page is the right choice almost every time. It scales the content until the longest dimension fits, so the entire page is preserved and nothing is lost. If the source and target have different proportions you will get a little extra white space on two sides, which is the correct trade-off for a document.
Fill the page scales until the page is completely covered, which means content extending past the shorter dimension is trimmed. Use it for backgrounds, photographs and posters where edge-to-edge coverage matters more than keeping every millimetre, and avoid it for text documents.
Do not scale leaves the content at its original physical size and only recentres it on the new page. Reach for this when the printed size has to stay exact, such as technical drawings, floor plans, sewing patterns or anything measured against a scale bar.
Common reasons to change PDF page size
- Printing across regions: converting between A4 and Letter so a document prints correctly on the paper actually loaded in the tray.
- Meeting submission rules: universities, journals, courts and tender portals frequently specify an exact page size and reject anything else.
- Standardising a merged document: combining files from several sources often produces a PDF where the page size jumps around. Resizing brings every page to one size.
- Scaling large-format work down: bringing an A1 poster or an A3 drawing down to something a normal office printer can produce.
- Fixing clipped edges: adding a margin so a printer's unprintable border stops cutting off text.
- Preparing for a specific device: resizing to match an e-reader screen or a display where the default page shape wastes space.
Frequently Asked Questions (FAQs)
Is this resize PDF tool free?
Yes, completely free with no account, no watermark and no limit on the number of files or pages.
Are my files uploaded to a server?
No. The resizing happens entirely inside your browser using JavaScript, so your document is read from your own disk and written back locally without ever being transmitted.
Will resizing blur my text?
No. The tool rescales the page content itself rather than converting pages to images, so text stays as text and vector graphics stay as vectors. The result is sharp at any zoom level and on any printer. Photographs inside the document are scaled along with everything else, exactly as they would be in the original.
Does resizing change the file size?
Barely. Because the page content is transformed rather than re-encoded, the resulting file is usually within a few percent of the original. If your goal is a smaller file rather than different page dimensions, use the Compress PDF tool instead.
What is the difference between resizing and compressing a PDF?
Resizing changes the physical dimensions of the pages, which is what matters for printing and submission requirements. Compressing keeps the dimensions identical and reduces how many bytes the file takes up, which is what matters for email limits and upload caps. They solve different problems and can be used together.
Can I resize only some pages?
The tool applies your chosen size to every page in the document, which is what produces a consistent file. If you need different sizes for different pages, split the PDF first, resize each part separately, and merge the results back together.
What happens to pages that are already the right size?
They are effectively left as they are. The scale factor works out to one, so the content is unchanged and only the page box is rewritten to the exact target dimensions.
Will my links and form fields still work after resizing?
Yes. Annotations, including links and form field widgets, are scaled by the same factor as the page content, so they stay aligned with what they point at rather than drifting or being discarded.
How do landscape pages behave?
With the default Keep each page's orientation setting, a landscape page is resized to the landscape version of your chosen size and a portrait page to the portrait version, so a mixed document stays coherent. Choosing Force portrait or Force landscape overrides that for every page.
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