JPG to PDF online — combine photos into one PDF document

Image to PDF, JPG to PDF, photos to PDF, and combine images to PDF searches power receipts, ID packets, and field photo documentation. QwerPDF stacks JPEGs in upload order—rename files with numeric prefixes so page order matches real-world chronology.

HEIC and iPhone photos

Convert HEIC to JPEG in Photos settings or export JPEG copies before upload when the tool expects JPG.

EXIF rotation usually honored—if a page lies sideways, rotate JPEG first then re-upload.

File size vs clarity

Phone megapixel photos create heavy PDFs—downscale in a photo editor when email limits matter.

For OCR later, keep effective resolution around 300 DPI equivalent for text in photos.

One image per page

Confirm UI option so two small receipts do not accidentally land on one page unless intended.

Mixed orientation

Portrait and landscape photos in one PDF is fine—print duplex users should preview.

White backgrounds replace JPEG transparency—use PNG to PDF if alpha matters.

Stitch with native PDFs

JPG to PDF for scans, merge PDF with a Word-to-PDF cover page for professional packets.

Grayscale scans

Grayscale JPEGs shrink faster for text receipts than full-color photos of the same paper.

ZIP limits

Corporate mail may block some ZIP patterns—single PDF attachment often passes easier than many loose JPGs.

Round trip

PDF to JPG then JPG to PDF loses quality—avoid loops for archival masters.