Change a PDF's paper size — A4 to US Letter, Letter to A4, A5, Legal, A3 — and scale content to fit, entirely in your browser. Vector-sharp output, selectable text, no upload.
A4 / Letter / Legal / A5 / A3 / Tabloid Vector Content (No Rasterizing) Fit or Stretch + Margin Scale 100% Client-Side
Last updated
Resize PDF Pages is a free, browser-based tool
from UseToolSuite's
Document & PDF Tools collection.
All processing happens locally on your device — your data is never uploaded to any server.
Use the tool below, then scroll down for detailed documentation, frequently asked questions, and related resources.
Advertisement
Drop a PDF here or click to select
Convert between A4, Letter, Legal and more — up to 100 MB
100% private Text stays sharp Works offline
100%
Below 100% adds an even margin around the content — handy before hole-punching or binding.
Pages
—
Page 1 size
—
Output
—
About the Resize PDF Tool
This tool changes the paper size of a PDF — A4 to US Letter, Letter to A4, anything to A5 or Legal — and can scale the content down to add printable margins. Each original page is embedded as vector content into a fresh page of the target size and drawn scaled-to-fit, so text and line art stay perfectly sharp: nothing is rasterized. Use it when a US-formatted document needs to print on A4 paper (or vice versa) without clipped edges, when a form needs uniform margins for binding, or when mixed page sizes in one document need normalizing. Everything runs in your browser; the file is never uploaded.
How to Resize PDF Pages
Drop in your PDF — the current page size is detected automatically.
Pick the target size — A4, US Letter, Legal, A5, A3, or Tabloid.
Choose orientation and fit — Auto keeps each page's own orientation; Fit preserves proportions, Stretch fills the page exactly.
Optionally scale the content — 90% leaves an even margin all round.
Download — the resized PDF keeps selectable text and crisp vectors.
A4 vs US Letter — why this matters
A4 (210 × 297 mm) is slightly narrower and taller than US Letter (216 × 279 mm). A document laid out for one and printed on the other either gets scaled awkwardly by the printer driver or clipped at the edges — the classic symptom is a US form whose bottom line vanishes on A4 paper. Converting the PDF itself to the target size, with content scaled to fit, removes the guesswork from the print dialog entirely. To shrink the file's byte size rather than its page dimensions, use the PDF Compressor instead.
The 6-millimeter problem
A4 is 210 × 297 mm; US Letter is 216 × 279 mm. Letter is 6 mm wider and 18 mm shorter. That small mismatch is responsible for a remarkable amount of print frustration: a Letter-formatted US form printed on A4 loses its bottom line or gets shrunk by the driver, while an A4 document on Letter paper clips at the sides or floats with uneven margins. Neither paper “wins” — A4 (ISO 216) is the standard almost everywhere, Letter rules in the US and Canada — so documents that cross the Atlantic keep hitting the mismatch.
Resizing the PDF converts the geometry once, correctly: each page is embedded as vector content into the target size and scaled to fit, so a 100% print on the destination paper comes out exactly as intended. Because A4 and Letter are proportionally close (aspect ratios 1.414 vs 1.294), the fit adds only slim bars — far better than a clipped line.
Vector embedding is what keeps it sharp
This tool never rasterizes. The source page becomes an embedded form object — the PDF-native way to nest one page inside another — and is drawn scaled onto the new page. Text remains real text to the renderer, curves remain curves, and a page scaled to 50% is as crisp at 400% zoom as the original. That’s also why the operation is fast and the file size barely changes: the fonts and images are carried over, not re-encoded. The one thing resizing deliberately doesn’t touch is byte size — for that, pair it with the PDF Compressor. And if what you actually want is to cut away page edges rather than scale content, that’s a different operation: Crop PDF.
How to Use This Tool
1
Upload your PDF
The current page size is detected and shown after conversion.
2
Choose the target size and orientation
Auto orientation keeps each page's own portrait/landscape; Fit preserves proportions, Stretch fills the sheet exactly.
3
Optionally scale the content
Setting 90–95% adds an even margin all round — useful before binding or hole-punching.
4
Download
Each page is embedded as vector content into the new size, so text stays sharp and selectable.
How helpful was this tool?
Click to rate
Awesome! Glad it helped.
We don't have a marketing budget. The best way to support this free tool is by sharing it with other developers!
Help us improve!
Sorry it didn't meet your expectations. We're always looking to make these tools better. What was missing or broken?
Essential terms and definitions related to Resize PDF Pages.
PDF point
The native PDF unit of measurement: 1 point = 1/72 inch. A4 is 595 × 842 points; US Letter is 612 × 792. All page-size math in a PDF happens in points, which is why sizes look like odd numbers.
Frequently Asked Questions
Does resizing make my text blurry?
No. Each source page is embedded into the new page as vector content and drawn scaled — the same mechanism PDF viewers use — so text, lines, and shapes remain mathematically sharp at any zoom. Nothing is converted to an image. Embedded photos scale with the page like they would on a photocopier.
What's the difference between A4 and US Letter, and why do prints get clipped?
A4 (210 × 297 mm) is narrower and taller than US Letter (216 × 279 mm). A PDF laid out for one and printed on the other either gets auto-shrunk by the printer driver or clipped at an edge — classically, the bottom line of a US form disappearing on A4 paper. Converting the PDF itself to the target size removes the guesswork from the print dialog.
Should I use Fit or Stretch?
Fit (the default) preserves the content's proportions and centers it, adding small even bars if the aspect ratios differ — this is almost always what you want, since nothing gets distorted. Stretch fills the target page exactly but changes proportions when the source and target aspect ratios differ, which visibly distorts text. Use Stretch only when the aspect ratios are close.
Does this reduce the file size of my PDF?
Resizing changes the page dimensions, not the compression — the byte size stays roughly the same because the same fonts and images are carried over. To make the file smaller in megabytes, use the PDF Compressor; the two tools solve different problems and combine well.
Should I resize the PDF or just use 'Fit to page' in the print dialog?
For a one-off print on your own printer, the print dialog's scaling is fine. Resize the PDF itself when the file will be printed by someone else (or a print shop), when you need every recipient to get identical output, or when a system downstream expects a specific page size. Print-dialog scaling is a per-print, per-driver setting that silently varies between machines; a resized PDF removes that variable by making the file itself match the paper.
How do I add a margin to a PDF for binding or hole-punching?
Keep the page size the same as the source, choose Fit, and set the content scale to around 90–92%. The content shrinks uniformly and re-centers, leaving an even margin on all four sides — about 10–12 mm on A4 at 90%, enough for a hole punch or spiral binding without clipping anything. If you need the margin on one side only (a true gutter), that's an asymmetric layout change this uniform scaling doesn't do — but for most binding jobs the even margin works.
Troubleshooting & Technical Tips
Common errors developers encounter and how to resolve them.
Landscape pages came out portrait with big margins
Set Orientation to "Auto" (the default) — it gives each page the target size in that page's own orientation, so landscape pages stay landscape. The "Portrait" and "Landscape" options force every page to one orientation.
There are white bars on the sides of the resized pages
That's the Fit mode preserving proportions when the source and target aspect ratios differ (A4 and Letter are close but not identical). It's the correct, undistorted result. If you'd rather fill the page exactly and can accept slight distortion, choose Stretch.
We use cookies to show personalized ads via Google AdSense.
All our tools process data locally in your browser — no personal data is collected.
You can accept personalized ads or continue with general ads only.
Privacy Policy
