How to compress photo?

Step 1: Goto "http://compressjpeg.com/"

Step 2: Click on upload as shown below

Step 3: Select your suitable file to upload as show below

Step 4: Click on settings icon where you can change the pixels and size

Step 5: Right side one bar will open where you can adjust your pixels and size. After changing to suitable setting click apply. As shown below.

Step 6: Now you are ready to download the file as shown below and enjoy!

NOTE: while applying for any competitive exams especially in INDIA you can make use of this trick to upload your passport size photo to your online application