Image to PDF Converter
Convert PNG, JPEG, or WebP images into a PDF. Each image becomes one page. Choose A4, Letter, or fit-to-image page size. All processing in your browser — nothing uploaded.
Why Convert Images to PDF?
PDF is the universal document format — accepted everywhere, preserves layout, and can combine multiple pages into a single portable file. Converting images to PDF is essential when:
- Submitting scanned documents — government portals, banks, and colleges require PDF format
- Creating a photo portfolio in a single shareable file
- Combining screenshots of multi-page content into one document
- Converting phone-camera photos of documents into professional-looking PDFs
- Uploading documents on platforms that accept PDF but not individual images
How to Convert Images to PDF
- Click Add Images or drag your image files into the upload area
- Reorder images by dragging them — the order determines page order in the PDF
- Choose page size: A4, Letter, or fit to image dimensions
- Click Convert to PDF and download the result
Page Size Guide: A4 vs Letter vs Fit to Image
| Page Size | Dimensions | Best For |
|---|---|---|
| A4 | 210 × 297 mm | India, Europe, global standard |
| Letter | 8.5 × 11 inches | US submissions and printing |
| Fit to Image | Matches image size | Photos, screenshots, no margins |
For government document submissions and college applications in India, choose A4. For US company filings, choose Letter. For photo books or screenshot collections where you want the PDF to match the original image exactly, choose Fit to Image.
Why Privacy Matters for Image Conversion
Many online image-to-PDF tools upload your files to a server. When the images are photos of ID documents, financial statements, medical records, or personal correspondence, this is a serious privacy risk — you have no guarantee those servers delete your files promptly or don't retain them for other purposes.
This tool uses pdf-lib, an open-source JavaScript library, to create PDFs entirely in your browser. Your images never leave your device — confirmed by the absence of any network request during conversion.
Best Practices for Document Image Quality
- Resolution: 150–300 DPI is sufficient for document PDFs. Higher resolution increases file size without meaningful quality gain for text documents.
- Format: PNG preserves text sharpness better than JPEG for scanned documents. Use JPEG for photographs to keep file size manageable.
- Lighting: Even lighting prevents shadows that obscure document text. When photographing physical documents, use natural light or flat artificial lighting.
- Orientation: Rotate images to portrait before converting — the tool preserves the original image orientation.
Frequently Asked Questions
What image formats can I convert to PDF?
The tool supports PNG, JPEG/JPG, and WebP images. Each image becomes one page in the PDF.
Can I convert multiple images to one PDF?
Yes. Add multiple images, reorder them by dragging, and the tool combines them all into a single PDF where each image is one page.
What page size options are available?
You can choose A4 (international standard), Letter (US standard), or fit-to-image (each page matches the exact dimensions of the image).
Are my images uploaded to any server?
No. All PDF creation happens in your browser using PDF-lib. Your images never leave your device.
What is the maximum number of images I can convert?
No limit is enforced. The practical limit is your browser memory. Converting 50-100 images in one batch works well on modern devices.