In case you are confused as to how you know exactly when you're reach your limit (10MB) or have gone over, follow this tutorial!
I'm using PDF files to demonstrate, but this tutorial is interhcangeable with JPG files.
STEP 1:
HIGHLIGHT A FILE
STEP 2:
SELECT MORE FILES BY HOLDING DOWN THE CTRL KEY AND SECLECTING MORE FILES. LET GO OF THE CTRL KEY WHEN YOU HAVE SELECTED THE AMOUNT YOU WANT. THEY SHOULD BE HIGHLIGHTED IN BLUE. RIGHT CLICK AND SELECT PROPERTIES.
STEP 3:
HERE YOU WILL SEE YOUR FILE SIZE. THE FILE SIZE HERE IS UNDER 5MB, SO YOU CAN NOW ZIP THESE OR COMBINE THEM IN PDF FOR UPLOAD.
IF YOU HAVE GONE OVER. EXIT OUT OF THE BOX AND HOLD DOWN YOUR CTRL KEY AGAIN AND CLICK THE LAST FILE YOU SELECTED. REPEAT STEP 2 UNTIL YOU FIND THE AMOUNT OF FILES THAT EQUAL YOUR UPLOAD LIMIT.
IF YOU ARE UNDER, EXIT OUT OF THE BOX, HOLD THE CTRL KEY DOWN AND HIGHLIGHT MORE FILES, REPEAT STEP 2 AND CHECK AGAIN.