Resize PDF
Change every page to A4, Letter, Legal, or custom dimensions.
Resize PDF changes the page size — A4, Letter, Legal, A3, A5 or a custom size — fitting the existing content to the new page, centred, while keeping it as vector content. The result is a normal PDF at the new size.
Resize PDF changes the page dimensions of your document to a standard size like A4 or Letter, or to custom measurements. Your content is scaled and centered to fit the new page. Resize PDF is one of UnboundPDF's 53 free browser-based PDF and image tools: it runs on your own device with no upload, no account and no watermark, and reports what it measured on the output.
How to resize PDF — steps & common uses
What people use Resize PDF for
People standardising page size — fitting a document to A4 or Letter for printing, or shrinking to A5 for a booklet.
- Fit a document to A4 for print
- Convert Letter to A4
- Shrink pages to A5
- Standardise mixed page sizes
How to resize PDF
- Add your PDF; pages are embedded on your device without uploading.
- Pick a preset size (A4, Letter, Legal, A3, or A5) or enter a custom width and height.
- Click Resize PDF to scale each page onto the new size.
- Preview the result and download the resized PDF.
Questions about Resize PDF 6
Are my files uploaded to a server?
No. UnboundPDF processes PDFs locally in the browser — documents are not uploaded to a server. We have no backend that receives, stores, or scans your files.
Does resizing blur my text?
No. Pages are embedded as vectors and scaled, not re-rendered as images, so text and lines stay sharp at the new size.
What if the new size has different proportions?
Your content keeps its aspect ratio and is scaled to fit and centered on the new page, so nothing is stretched.
Which page sizes can I choose?
Common standards such as A4, A5 and Letter. Each page is scaled to the size you pick.
Does content scale with the page?
Yes. The page and its content are scaled together, so proportions are kept and nothing is cut off.
Is the text still sharp after resizing?
Yes. Text stays as vector text and remains crisp at the new size, rather than blurring like an image.
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How your files are handled
The work runs on your own device, inside the browser tab — so there is no server to send your document to.
- Nothing is uploaded. We have no backend that receives or stores documents, so we cannot see your files during processing or after.
- Your device does the work. Large documents are handled in stages, pages are rendered as you reach them, and each job is checked against your device before it starts — so a long run takes longer on a phone than on a laptop, nothing is queued behind other people's jobs, and you can stop a run at any point without touching your original file.
- No account and no watermark. The output is a clean file you can use anywhere, with no sign-up and no hourly cap.
More edit tools
Other free PDF utilities that work the same way — in your browser, no sign-up.