Image to PDF Converter

How This Tool Works

Operation: The Image to PDF tool converts common image formats — JPEG, PNG, WebP, BMP, GIF, and TIFF — into a single PDF document entirely inside your browser. Each image is loaded into an HTML element using the CanvasRenderingContext2D API, preserving its original dimensions and aspect ratio. The tool uses the jsPDF-like approach natively: a new PDF document is constructed page-by-page, with each image rendered at full resolution onto an A4 (or custom-sized) page. The resulting PDF pages use the image's pixel data directly, ensuring lossless conversion without re-compression artifacts.

Page sizing: By default, each image is fitted to an A4 page (210 × 297 mm) with automatic orientation detection — landscape images are placed on landscape pages, portrait images on portrait pages. The tool calculates the scaling factor to maximise image real estate while preserving aspect ratio.

Key Benefits of Using the Image to PDF

• Zero-upload architecture: Your images never leave your device. Every pixel is processed in-memory using the Canvas API. This is critical for sensitive content like scanned ID documents, medical reports, or proprietary product images that you cannot risk exposing to third-party servers.
• Batch conversion with ordering: Select multiple images in one go — the tool preserves your selection order and generates a multi-page PDF automatically. Reorder by simply re-selecting files in the desired sequence, unlike many tools that require one-at-a-time conversion.
• No quality loss: The canvas-to-PDF pipeline uses the source image's native resolution. Unlike compression-heavy alternatives that downsample to reduce server load, your output PDF retains every pixel of the original photograph or scan.

Practical Real-World Use Cases

• Real estate agents compiling property portfolios: An agent can select photos of a listing — exterior shots, room interiors, floor plans — and convert them into a single PDF portfolio to email prospective buyers, without uploading client property images to an external service.
• Photographers sending proofs to clients: A wedding photographer selecting final edited images can bundle them into a clean A4 PDF proof sheet for client review. The client sees each image at full resolution without needing specialised image viewing software.
• HR departments digitising employee documents: An HR coordinator scanning signed offer letters, identity proofs, and qualification certificates can combine all JPEG/PNG scans into a single employee file PDF, maintaining confidentiality throughout.

Frequently Asked Questions (FAQ)

What image formats are supported?

JPEG, PNG, WebP, BMP, GIF (first frame only), and TIFF (first page only). All standard image formats that browsers can render are supported. If your browser can display an image type, this tool can convert it to PDF.

Can I set a custom page size instead of A4?

The current version auto-fits to A4 with orientation detection. For custom page sizes (letter, legal, or specific dimensions), you can use the image resizer tool first to match your desired output dimensions before conversion.

What is the maximum image resolution supported?

There is no hard-coded limit, but very large images (10,000+ pixels on a side) may impact performance depending on your device's available RAM. For extremely high-resolution images, the tool automatically downsamples to fit within the A4 page boundaries while maintaining aspect ratio.