Image to PDF Converter

Images to PDF - Every Image Becomes One Page

The Image to PDF Converter combines any number of JPG, PNG or WebP images into a single multi-page PDF document, entirely in your browser. Each image becomes one page. The pages are sized to your chosen paper format (A4, A3, Letter, Legal or Auto-fit) with configurable margins and a quality slider for JPEG compression of photographic content inside the PDF. No software to install, no files sent to a server, no limit on the number of images per conversion.

Paper Size Options and When Each Is Right

A4 (210×297mm) is the standard for documents in Europe, Asia, Australia and most of the world. Use for reports, invoices, letters and any document that will be printed or distributed internationally. A3 (297×420mm) is double the size of A4 - use for large diagrams, architectural plans, presentation prints and anything that needs more space than a standard page. Letter (8.5×11 inches) is the North American standard, used in the US and Canada for business documents, contracts and reports. Legal (8.5×14 inches) is taller than Letter and used in US legal documents, contracts and government filings. Auto-fit creates each page at exactly the image's native pixel dimensions, so the PDF page matches the image perfectly without any white borders or scaling - the best choice when document appearance matters more than consistent page sizing.

Portrait vs Landscape Orientation

Portrait orientation (taller than wide) is the default for documents, reports and text-heavy PDFs. Landscape (wider than tall) suits presentations, wide panoramic images, spreadsheet exports and engineering diagrams. When combining images with mixed orientations - some portrait, some landscape - the converter applies the same orientation to all pages. For mixed orientation PDFs where each page should match the image's own orientation, use Auto-fit page size which adapts to each image's natural dimensions individually.

Page Margins and Image Quality

The margin slider adds white space between the image and the page edge, in points (1 point = 1/72 inch). A margin of 20pt adds roughly 7mm of padding on all sides - appropriate for formal documents. Set margins to 0 for full-bleed images where the image should reach the page edge without any border. The Image Quality slider controls JPEG compression of photographic images embedded in the PDF. At 85%, images are visually lossless at normal viewing and printing distances while keeping file size reasonable. At 95-100%, images are essentially lossless inside the PDF but the file size increases proportionally. For PDFs that will only be viewed on screen, 75-80% quality is typically indistinguishable from higher settings.

Page Order and Reordering

Images appear in the PDF in the order they were uploaded. Drop them in the desired order, or use the reorder controls to drag pages into position before generating. For a photo book, presentation or report where sequence matters, arrange the images before clicking Generate PDF. Once generated, the download is a standard PDF file that opens in any PDF viewer - Adobe Acrobat Reader, Preview on Mac, Edge or Chrome built-in PDF viewer on Windows, and any mobile PDF app.

Use Cases - When Image-to-PDF Is the Right Approach

Scanned document assembly: Scan multiple pages as individual JPG images, then combine into a single searchable PDF for archiving or sharing. Photo portfolios: Compile a selection of portfolio images into a single PDF for client presentation - one file, no image hosting required. Invoice and receipt collections: Combine multiple receipt photos into a single PDF for expense reporting or bookkeeping. Proof of identity packages: Combine multiple document photos into one PDF for government or institutional submission. E-commerce product catalogues: Combine product images into a PDF catalogue with consistent page sizing. For images that need resizing before PDF conversion, use the Image Resizer first to ensure consistent dimensions across all pages.

File Size Expectations

PDF file size is primarily determined by the embedded image sizes and quality setting. A PDF containing ten 3MP JPG photos at 85% quality will typically be 2-5 MB - small enough for most email attachments. A PDF of ten 12MP uncompressed photos at 100% quality could be 30-50 MB. If the output PDF is too large for its intended use, reduce the Image Quality slider to 75-80% and regenerate - the visual difference is minimal for photographic content. After generating, use the Image Compressor on your source images first if you want smaller embedded images before conversion.

✓Verified by ToollyX Team · Last updated June 2026