Image to PDF Converter

How it works

Convert images to PDF in three steps

This tool converts your images into a professionally structured PDF document without sending a single byte to a server. Everything runs inside your browser using the Web File API and the open-source jsPDF library, so your files stay completely private.

Step 1: Upload your images

Drag and drop one or more images onto the upload area, or click to open a file picker. You can add images in batches -- just click "Add more" to include additional files after your first selection. Supported formats are JPEG (.jpg, .jpeg), PNG (.png), and WebP (.webp). Files that do not match these formats are automatically skipped with a notification.

Step 2: Arrange and adjust

Once uploaded, your images appear as page cards in the order they will appear in the PDF. Each card shows:

• Page number: The position of this image in the final document.
• Reorder arrows: Move a page up or down to change its position in the PDF.
• Rotate button: Rotates the image 90 degrees clockwise. Click multiple times for 180 or 270 degree rotation. The rotation is applied during PDF generation, not just visually.
• Remove button: Deletes an image from the batch without affecting the others.

Step 3: Choose settings and convert

Select your PDF settings before converting. The three settings work together to control the final document layout:

• Page size: A4 (the international standard, 210 x 297 mm) or US Letter (the North American standard, 8.5 x 11 inches). "Fit to image size" creates each page at exactly the proportions of the source image -- useful when you want no letterboxing and the PDF page size does not matter.
• Orientation: Portrait (taller than wide) or Landscape (wider than tall). "Auto" detects the orientation from each image's aspect ratio individually, so a mix of portrait and landscape photos each get the correct page orientation. This setting is ignored when "Fit to image size" is selected.
• Margins: None (images fill the entire page), Small (10 mm border around each image), or Large (25 mm border). Margins add clean white space and prevent images from printing to the very edge, which some printers require.

Click "Convert & Download PDF" to generate the document. A loading spinner appears while the images are being processed. Conversion time depends on the number and size of images.

How images are scaled inside the PDF

Each image is scaled to fill the available space on its page (the page dimensions minus the chosen margins) while preserving the original aspect ratio. This means images are never stretched or distorted. If the image aspect ratio does not match the page aspect ratio, the image is centred with equal padding on the shorter sides (letterboxing).

A4 vs US Letter: which should I use?

A4 (210 x 297 mm, or approximately 8.27 x 11.69 inches) is the international standard used in most of the world outside North America. US Letter (215.9 x 279.4 mm, or exactly 8.5 x 11 inches) is slightly wider and shorter than A4. Use A4 if you plan to print in Europe, Australia, or anywhere outside North America. Use US Letter if you are printing on standard American office paper or sharing with North American recipients.

Privacy and security

This converter is 100% client-side. Your images never leave your device -- they are not uploaded to any server, never stored in a database, and not transmitted over the network. The PDF is generated entirely within your browser's JavaScript environment and downloaded directly to your computer. This makes the tool safe for sensitive documents such as personal identification, legal contracts, or medical records.

Disclaimer

This tool is provided for convenience and general use. Very large files or very high-resolution images may use significant browser memory during conversion. Output PDF quality depends on the source image quality. For professional print production, consider using dedicated desktop software for maximum colour fidelity.