Resize PDF
Scale PDF pages to standard paper sizes (A4, Letter, Legal, A3, A5) with automatic orientation for printing and official submissions.
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About Resize PDF
The Resize PDF tool by PdfPixels converts any PDF to a standard paper size such as A4 or Letter. Upload your file, pick the target size and orientation, and download the uniformly resized PDF for free.
Resize PDF scales every page of your document to a standard paper size — A4, Letter, Legal, A3, or A5 — without distorting content. Mixed-size documents (for example a contract with letter and A4 scans) are normalized to one consistent sheet, which is exactly what printing services, university submissions, and government portals expect. Pages are scaled proportionally and centered, with automatic portrait/landscape detection or a forced orientation. Processing runs on our servers; there is no signup and no watermark.
Key Features
- Scale to A4, Letter, Legal, A3, or A5 sheet sizes
- Automatic portrait/landscape detection per page, or force one orientation
- Proportional scaling with centering — no content stretching
- Normalizes mixed-size documents to a single consistent sheet
- Works with PDFs up to 50 MB on the server
Who Uses This Tool?
- 1Preparing mixed-size scanned documents for university or government submission
- 2Standardizing a contract before printing at a copy shop
- 3Converting US Letter documents to A4 for international recipients
- 4Scaling oversized drawings down to printable A3 or A4 sheets
How to Use Resize PDF
Upload your PDF
Drop the PDF you want to standardize into the workspace.
Choose the target paper size
Select A4, Letter, Legal, A3, or A5 and portrait, landscape, or automatic orientation.
Process and download
Run the resize and download your uniformly sized PDF.
Troubleshooting & Common Problems
Margins look different after resizing
Scaling is proportional and centered. If the original page had unusual margins, they scale with the content — crop the PDF first for tighter margins.
Small content after upscaling to A3
Enlarging a small page adds space rather than inventing detail. Export the original at higher resolution if possible.
Frequently Asked Questions
01Will resizing a PDF change its text quality?
No. Vector text and images are scaled mathematically, so they stay sharp at the new page size. Only very low-resolution scans stay as soft as they were.
02Can I convert US Letter to A4?
Yes. Pick A4 as the target size and the tool scales and centers each Letter page onto A4 with correct proportions.
03What happens to pages with different sizes in one file?
Every page is normalized to the target sheet size, so the output PDF has one consistent page dimension throughout.
04Is Resize PDF free?
Yes. It is free with no signup required. Fair-use rate limits apply.
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