JPG to PDF

Converting an image to PDF means wrapping it in a PDF page. The image stays at its original resolution — we do not downsample, recompress, or color-shift. A 4000×3000 photograph becomes a 4000×3000 image inside a PDF page sized to match the image's aspect ratio. The result is a PDF whose page size matches the image, so it prints and displays at the same physical proportions as the original.

For multi-image conversion, each image becomes its own page in the order you arrange them. Page sizes can vary between pages — a portrait image followed by a landscape one produces a PDF with one portrait page and one landscape page. This avoids the common problem of forcing every image into a fixed A4 page (which either crops large images or leaves white margins around small ones).

SwitchPDF uses pdf-lib to embed images as native PDF image objects. JPGs are embedded directly without re-encoding (so file size is preserved exactly). PNGs are embedded as PNG streams when supported, falling back to lossless conversion when the viewer requires it. Color profiles are preserved when present in the source.

Use cases: scanning paper documents with your phone camera, combining receipts into a single PDF for expense reports, packaging multiple screenshots into a deliverable, creating an image-based portfolio. Pair with Compress PDF afterwards if you need to email the result and the image-heavy PDF is too large.