How to convert JPG and PNG images to PDF
Whether you've photographed a document with your phone or scanned receipts as image files, this tool lets you merge any number of JPG, PNG, or WEBP images into a single, properly formatted PDF — with full control over page size, orientation, margins, and quality.
Unlike cloud-based converters, ToolShelf processes everything in your browser. Your photos never leave your device, making it safe for sensitive materials like ID cards, contracts, bank statements, and medical documents.
Key features
- A4 & Letter support: Force images onto standard paper sizes, ready for printing or official submission.
- Smart auto-orientation: The Auto setting detects landscape vs. portrait and rotates the page to match your image.
- Custom margins: Add whitespace around images to prevent content being clipped when printing.
- Drag-to-reorder: Set the exact page order before generating the PDF.
- Resolution control: Choose 72–300 DPI to balance file size vs. print quality.
Common use cases
- Visa & immigration forms: Combine photos of your passport, ID, and supporting documents into a single PDF submission.
- Expense reports: Merge receipt photos into one PDF for finance or accounting teams.
- University applications: Bundle scanned certificates and transcripts into one file.
- Contracts & legal docs: Photograph signed paper documents and create a digital archive PDF.
Tips for the best results
- For printing: Use 300 DPI and a 10mm margin to ensure crisp output on paper.
- For email or upload: Use 96 or 72 DPI and quality 0.7 to keep the file small.
- Need a specific file size? After converting, use the Compress PDF to Exact Size tool to hit limits like 2MB or 500KB.
- Have a PDF already? Combine multiple PDFs using the Merge PDF tool.
Frequently Asked Questions
How do I convert JPG images to PDF for free?
Upload your JPG or PNG files, choose your page size and margins, then click Create PDF. The file is built entirely in your browser — no sign-up required.
Can I combine multiple images into one PDF?
Yes. Add as many images as you need and drag to reorder them. Each image becomes one page in the output PDF.
Are my photos uploaded to a server?
No. All processing happens locally using WebAssembly. Your images never leave your device.
What page sizes are supported?
A4 (210 x 297 mm) and US Letter (8.5 x 11 in) — the two standard sizes for printing and official submissions worldwide.
How do I reduce the PDF file size after converting?
Lower the DPI to 72 or reduce the quality value before creating the PDF. You can also run the result through the PDF Compressor for precise size targeting.
Does this work on mobile?
Yes. Take a photo with your phone, open this page in your mobile browser, upload the image, and download the PDF directly.