Image to PDF Converter
Convert images to PDF online for free. No upload required — combine multiple images into a single PDF with page size options, entirely in your browser.
How to Use
Convert images to PDF in seconds:
- Upload your images — Drag and drop one or more images, or click to browse. Supports PNG, JPG, WebP, BMP, and GIF.
- Arrange and configure — Images appear in order. Choose page size (A4, Letter, or Fit to Image) and orientation.
- Click "Create PDF" — The PDF is generated with each image on its own page, centered and scaled to fit.
- Download the PDF — Save the combined PDF to your device.
About This Tool
PDF (Portable Document Format) was created by Adobe in 1993 as a universal document format that displays identically across all devices and platforms. PDF has become the global standard for document exchange — over 2.5 trillion PDF documents exist worldwide as of 2024. The format supports text, images, vector graphics, interactive forms, digital signatures, and embedded fonts, all in a self-contained file.
Converting images to PDF creates a portable document that can be shared, printed, and archived with consistent formatting. Unlike sending raw image files (which may display differently depending on the viewer's software and settings), a PDF guarantees that the images appear at the intended size and position on every device. This makes Image-to-PDF conversion essential for creating portfolios, scanned document collections, photo albums, and presentation handouts.
This converter uses pdf-lib, a JavaScript library for creating and modifying PDF documents. Each image is embedded as a PNG image object within the PDF, centered on a page with configurable dimensions. The "Fit to Image" mode creates pages that exactly match each image's dimensions — useful for architectural drawings, infographics, or other content where standard page sizes would add unwanted margins.
When using A4 or Letter page sizes, images are automatically scaled to fit within the printable area (with 0.5-inch margins) while maintaining their aspect ratio. Images smaller than the page are centered without upscaling, preserving their original resolution.
Why Use This Tool
Common reasons to convert images to PDF:
- Document compilation — Combine multiple scanned pages, receipts, or screenshots into a single organized PDF for filing, sharing, or submission.
- Portfolio creation — Package design work, photography, or artwork into a professional PDF that maintains consistent formatting across all viewers.
- Print preparation — PDF is the preferred format for professional printing services. Converting images to PDF with proper page sizes ensures correct print dimensions.
- Email-friendly sharing — Instead of attaching 10 individual image files, combine them into one PDF for cleaner email communication.
- Archival and compliance — Many businesses and institutions require documents in PDF format for record-keeping, legal compliance, and long-term archival.