Resize PDF

Change the page size of any PDF to A4, Letter, Legal, or custom dimensions. Set every page to a standard size instantly. Free, private, all processed in your browser.

About Resize PDF

Change the page size of your PDF to A4, Letter, Legal, A5, A3, or completely custom dimensions. Every page is set to the new size while your content stays intact. All processing happens in your browser using pdf-lib — your files never leave your device.

Standard Sizes

Resize to A4, Letter, Legal, A5, or A3 with one click — perfect for printing and submission requirements.

Custom Dimensions

Set exact page width and height in millimetres, inches, or points for complete control over the output.

Preserve Content

Your text, images, and layout are kept intact. Optionally scale content to fit the new page dimensions.

100% Private

Files are processed locally in your browser. Nothing is ever uploaded to a server.

📋 Common Use Cases

Print-Ready Documents

Convert PDFs to A4 or Letter so they print correctly on your local printer or at a print shop.

Submission Requirements

Match the exact page size a university, court, or government portal requires before uploading.

Uniform Document Sets

Normalize mixed-size PDFs to a single page size before merging into one consistent document.

E-Book Publishing

Resize manuscript pages to a consistent trim size before converting or publishing as an ebook.

🪜 How to Use This Tool

Upload your PDF
Drag and drop a PDF file onto the upload area or click to browse and select it from your device.

Choose a page size
Pick a standard size like A4, Letter, or Legal, or select Custom and enter your own width and height.

Set orientation and scaling
Choose portrait or landscape, and optionally tick "Scale content to fit" so content adjusts to the new page.

Download your file
Click Resize PDF and download the resized document instantly — no account, no email required.

Frequently Asked Questions

Is this PDF tool really free?▼

Yes. Every PDF tool on iluv.tools is completely free. No signup, no account, no payment. Everything runs in your browser.

Are my PDF files uploaded to a server?▼

No. All PDF processing happens locally in your browser using the pdf-lib and PDF.js libraries. Your files never leave your device.

Will resizing cut off my content?▼

By default the page size changes while your content keeps its original size. If the new page is smaller than the content, parts may fall outside the visible area. Tick "Scale content to fit" to shrink content so everything stays visible.

Do these PDF tools work offline?▼

Basic PDF tools (merge, split, compress, rotate, sign, watermark, protect, unlock, add page numbers, edit metadata, flatten, grayscale, crop, delete pages) work completely offline after the page loads. AI-powered tools like smart compression and PDF to Word require an internet connection.

Is there a file size limit?▼

Browser-based tools handle files up to ~100MB smoothly. Larger files may be slower depending on your device. For very large PDFs, try splitting them first, processing the parts, then merging.

Can I use these on mobile?▼

Yes. All PDF tools work on mobile browsers (iOS Safari, Android Chrome). Desktop is recommended for large files, but everything is functional on mobile.