Image to PDF: Convert JPG, PNG, HEIC to PDF

How to convert images to PDF

1. Press Choose images, drop files onto the box, or paste a copied screenshot with Ctrl+V (⌘V on a Mac). JPG, PNG, iPhone HEIC and HEIF, WebP, AVIF, TIFF, GIF, BMP and SVG files can be mixed in one batch.
2. Put the pages in order: drag a page by its grip handle (or the whole card with a mouse), or use the arrow buttons. The × removes a page.
3. Pick the page size, orientation, margin and placement. The thumbnails show exactly where each image will sit on its page.
4. Press Create PDF. The file is built on your device and saved to your downloads.

Fit or fill

Fit scales each image to fit inside the margins, never cropped or stretched. Fill scales it to cover the whole area inside the margins and trims the overflow equally from both sides, like a borderless photo print. Set it for every page at once, or for one page on its card. The trimmed edges are hidden by clipping, not deleted: the whole image is still stored in the PDF, so do not rely on Fill to hide private details.

Auto orientation turns a page sideways when its image is wider than it is tall. Choose Portrait or Landscape to make every page face the same way, which matters for double-sided printing. The default small margin (6 mm, about ¼ inch) keeps a scan’s edge clear of the unprintable border most printers leave.

Image quality and file size

With compression off, JPEG photos are copied into the PDF without re-encoding. The PDF format stores JPEG data as it is (the DCTDecode filter of ISO 32000), so there is no quality loss. Only the compressed picture is copied: EXIF (GPS location, camera serial number), XMP, IPTC, comments and a motion photo’s video are left out. The EXIF rotation tag is applied with the page’s transformation matrix, and a colour profile such as the Display P3 of phone photos is kept.

Other images are decoded by your browser and stored either as JPEG at the quality you set, or lossless with Flate compression and PNG row predictors, which keeps screenshots and scanned text crisp. HEIC and AVIF photos always become JPEG.

Turn compression on to shrink the PDF. Every image is re-encoded as JPEG and scaled down to the resolution limit, in pixels per inch (ppi) at the size it is printed. 150 ppi looks sharp on screen and is fine for everyday printing; choose 300 ppi for high-quality prints. A photo that re-encoding would make bigger is kept as it was. The estimate above the Create PDF button shows the size before you save.

SVG drawings are rendered at 300 ppi for the size they are printed at, so lines stay sharp. From a multi-page TIFF only the first page is used, from a HEIC file its main image, and from an animation its first frame.

Transparency, title and author

Transparent areas are normally flattened onto white, as they would look on paper. Keep transparency stores the alpha channel as a soft mask, so a logo or signature stays see-through when the page is placed over other artwork. The title and author are saved in the document properties, and PDF readers show that title in the window instead of the file name. The output is a standard PDF 1.7 file (ISO 32000-1).