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Scanned documents on your phone? Screenshots that need to be a single report? Upload your images, drag them into order, and download a clean PDF — all processing happens in your browser.
Last Updated: April 22, 2025Privacy: 100% Local Browser Processing
What is the Image To Pdf?
An Image to PDF converter bundles multiple image files (JPEG, PNG, WebP) into a single PDF document with one image per page. This is ideal for digitizing physical documents captured with a phone camera, creating portfolios from individual image files, combining screenshots into a single report, or preparing multi-page documents from scanned pages.
How to Use
- 1Select or drag-and-drop one or more images (JPG, PNG, WebP).
- 2Drag and drop the thumbnails to arrange the page order.
- 3Configure page settings like orientation and margins.
- 4Click 'Generate PDF' to create the document.
- 5Download your new PDF instantly.
Real-World Use Cases
- Document digitization — combine phone photos of paper documents (receipts, contracts, ID cards) into a single PDF for email submission or archival.
- Portfolio creation — assemble individual artwork images, photography, or design mockups into a professional PDF portfolio.
- Report assembly — combine related screenshots (error logs, dashboards, test results) into a single document for sharing with colleagues.
- Scan organization — arrange scanned book pages or multi-page documents into the correct order before creating the final PDF.
Technical Deep Dive
The conversion process uses pdf-lib to create a new PDF document from scratch. For each uploaded image, the tool reads the file as an ArrayBuffer, detects the image format from the file header (magic bytes), and embeds it into a new PDF page using the appropriate embedding method — JPEG images are embedded directly (since PDF natively supports JPEG), while PNG images are decoded and re-encoded. The page dimensions are automatically set to match the image's aspect ratio, ensuring that images are displayed at their full resolution without cropping or stretching. The drag-and-drop reordering interface uses the @dnd-kit library, which provides accessible, performant drag operations with visual feedback. Once the order is finalized, the tool serializes all pages into a single PDF file and triggers a browser download.
Pro Tips & Best Practices
- For the smallest PDF file size, use JPEG images rather than PNG — JPEG compression is natively supported in PDF format, avoiding re-encoding overhead.
- Take photos in good lighting with a steady hand for the best quality. Blurry or dark images will look blurry in the PDF regardless of settings.
- Use the drag-and-drop interface to arrange pages in the correct order before generating — it is easier than rearranging pages after the PDF is created.