JPEG or JPG — what is the difference?
There is none in the picture itself. JPEG is the name of the standard, and .jpg is the shorter file ending that older Windows versions needed. Some portals and software still check for the exact ending .jpeg, which is why this tool saves files with that name.
What happens when you convert
Every page of the PDF is drawn exactly as a PDF viewer shows it and saved as a .jpeg picture. Choose Screen (96 DPI) for small files, Standard (150 DPI) for normal use, or High (300 DPI) for printing and small text. Each page becomes its own file named with its page number, and multi-page PDFs download as one ZIP, or one by one from the file list.
Where .jpeg files are requested
Online applications that ask for scanned documents as images, older photo-printing kiosks, some e-commerce listing tools and certain government systems name .jpeg explicitly in their instructions. If a site says “JPG/JPEG”, either ending works.
Common problems and how to fix them
The site wants a size under a certain KB: compress the picture with Compress Image after converting. The site wants .jpg instead: use PDF to JPG — the content is identical. Text is unreadable at 96 DPI: convert again at 150 or 300 DPI.
Good habits
Check the exact file ending and size the portal asks for, convert only the pages you need, and keep the PDF as your master copy.