A4 to Letter Converter
Convert standard international A4 page dimensions to US Letter size format securely in your browser—100% private & client-side.
Drag & drop files to convert
or click to browse from your device
How A4 to Letter Conversion Works
Resize and adapt your international PDF layouts in 3 simple steps.
Upload PDFs
Select the A4 size PDF files you want to resize. You can upload multiple files at once.
Scale & Resize
Our browser-based engine automatically scales layout coordinates and adjusts dimensions to standard US Letter.
Download Letter PDFs
Instantly download your converted document or zip archive directly to your local file system.
Why convert A4 to US Letter?
A4 and US Letter sizes differ in height and width. Adapt documents for standard North American printing formats without layout issues.
Proportional Scaling, No Cuts
Page content is scaled dynamically to fit standard US Letter dimensions without cropping margins or text headers.
Batch Files Conversion
Upload multiple PDF files. Convert all of them at once and download them in a single zipped package.
100% Client-Side Privacy
The entire layout mapping runs locally inside your browser cache memory. No files are uploaded to our servers.
Frequently Asked Questions
Common queries regarding client-side PDF document resizing.
Q.Will my document content get cropped?
No. The conversion scales the page content proportionally to fit the Letter page width and height ratios without cutting text or graphics.
Q.Is there a limit on the number of PDFs I can convert?
No. Since conversion tasks run directly on your computer hardware, you can process dozens of files in a single batch.
Q.Does this tool support landscape documents?
Yes. The algorithm automatically detects landscape orientation and adapts scaling factors to match landscape Letter size.
Q.Why should I convert A4 to US Letter format?
If you send an A4 PDF document to printers in standard US or Canada locations, text or layouts near the bottom can be cut off. Converting first resolves this.