Do so by tapping the blue "App Store" icon on one of your Home screens. This is on the bottom of your screen. It's at the top of your screen. It should be the first result in the drop-down menu. This should be to the right of the "Photo Investigator: View, Edit, Remove Metadata" heading. Your download should commence. It should be visible on one of your Home screens. This is in the bottom left corner of your screen. This will allow Photo Investigator access to your photos. You can also tap a specific album on this page. This should be on the default Photo Investigator tab that's open below your photo. This value will likely be measured in megabytes (MB).
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One-sentence summary -- Open the App Store. Tap Search. Tap the search bar. Type "Photo Investigator" into the search field. Tap the "photo investigator" option. Tap GET. Tap INSTALL. Enter your Apple ID and password. Open the Photo Investigator app. Tap the photo icon. Tap OK. Tap All Photos. Select a photo. Review the "File Size" value.

Use newspaper to cover the table or whatever surface you're planning to make the paper on. The process can get messy, especially with children. This will make cleaning up easier. Once the surface is covered, place a paper towel on top of the newspaper. The paper towel will be the base layer of the papyrus. Use cup (120 mL) of glue. Any type of liquid white glue will work. Then, pour cup (120 mL) of water in the bowl. Mix the contents with a spoon until a runny consistency is created. Pour 1 cup (240 mL) each glue and water if you plan on making 2 sheets of paper. You will need to use 2 brown paper lunch bags. Tear the bags into 12in (1.3cm) wide strips, but the strips should be long. Tear the strips as long as you want the paper to be. You can use your hands to tear the strips, or cut them with scissors. You should use 4 brown paper bags if you plan to make 2 sheets of paper. Tearing the strips is better than cutting them because the ripped edges will fuse together better and give you a smoother surface. Dip each strip individually. Try to keep the strips as flat as possible when dipping them. Make sure the strips are fully soaked with the mixture. Run the strips between your index and middle fingers to remove any excess glue. Like with papier mache, you want the strips to be saturated, but not dripping. After you dip each strip in the mixture, lay them next to each other on top of the paper towel. You should lay them out vertically. The strips should be slightly overlapping. Make sure that the top and bottom edges are aligned. You don't want them to be off-set or crooked. Once the first half off the strips have been laid out vertically, begin laying out the second half of the strips. Lay the strips out horizontally and on top of the vertical ones. For a more authentic look, you can weave the horizontal strips over and under the vertical ones, just like making a basket or woven rug. Press the paper with your hands once all of the strips have been laid out. Smooth out any excess air or glue bubbles. Continue doing this until the paper is smooth and flat. Start in the middle of the paper and work your way outward towards the edges. Move your hands apart horizontally first, then vertically. Keep the paper on top of the paper towel and newspaper while it dries. It should take about 8 hours to dry. Once it has dried, carefully peel the paper off of the newspaper. The paper towel will likely be stuck to the back of your papyrus, which is fine; it is in the back. If you are pressed for time, you can speed the process up with a hairdryer.
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One-sentence summary --
Cover the table surface with newspaper and paper towels. Mix glue and water into a bowl. Tear paper bags into strips. Dip the strips into the glue and water mixture. Lay the strips out vertically. Lay the second half of the strips out. Smooth out the paper. Allow the paper to dry.