Image → PDF

Which image formats are supported?

JPEG, PNG, and WebP. Each image becomes one page in the output PDF.

What page size will the PDF use?

Each page is sized to match the dimensions of its source image, so the image fills the page without cropping or padding.

Will image quality be reduced?

No. JPEGs are embedded byte-for-byte - only their EXIF metadata is removed, and the photo's orientation is kept. PNGs are stored losslessly, and WebP images are converted to lossless PNG, which can make those pages larger than the original file but never lower quality. Nothing is resized.

Is there a limit on how many images I can add?

There is no enforced limit. Very large or high-resolution images may be constrained by your device's available memory since all processing runs in the browser.

Can I scan a paper document with my phone?

Yes. Press "Take a photo": on a phone it opens the camera, and each photo you take becomes a page. Press it again for the next page, drag the rows to reorder, then convert. On a computer the button opens the ordinary file picker instead, and some phone browsers or settings do the same - the camera is only a request the browser may ignore, so if you get the file picker, take the photos with your camera app first and add them here. Location data (GPS) and other EXIF in your photos is removed from the PDF. Flat paper, even light and the whole page in frame give the best result.

Can I use HEIC or HEIF photos from my iPhone?

No. HerePDF accepts JPEG, PNG and WebP only; a HEIC or HEIF photo is named and skipped. Set the iPhone camera to "Most Compatible" (Settings → Camera → Formats) so it takes JPEGs, or share the photo as a JPEG (the Photos app's share sheet offers it when you choose "Options → Most Compatible").

Does it straighten the page, crop the edges or make it black and white?

No. The photo is put into the PDF as it is - there is no edge detection, straightening, perspective correction or clean-up, which would need an image-processing library HerePDF does not include. Photos are full camera resolution, so a scan of many pages can be large: use Compress afterwards if it is too big to send.