When adding a header, you need to double tap the top of the document.
google or search through pvps
The buttons depend on what version of MS
Office he is using. Assuming Eric is using Powerpoint 2013, he must press the following:
1st Slide: Insert > New Slide >
Title Only
2nd Slide: Insert > New Slide > Comparison > Click on "Pictures" icon > Browse > Click selected picture > Insert > Delete text box saying "Click to add title" > Insert another picture using same procedures above > Add captions
3rd slide: Insert > New Slide > Two
Content > <span>Click on "Picture" icon > Browse > Click selected picture > Insert 3 more pictures > Click textbox "Click to add title" </span>
Answer: I reduces the size
Explanation: cropped areas of pictures are saved by default, which adds to the file size. If your using PowerPoint then it can reduce the file size by compressing pictures, like lowering their resolution, and deleting cropped areas.