Have you ever wanted to get a poster of your favorite photo printed? I have. But I'm broke. Then I realized that you can make a very good looking poster sized image using a bunch of 4 x 6 photos.
Step 1: Materials
-16 4 x 6 photos (from cvs, walgreens, etc...)
- Foam poster board (I used 22 x 28)
-Elmer's spray adhesive glue
Step 2: Open your image in Photoshop
Increasing the contrast of your picture can sometimes help the final blown up image look nicer.
Step 3: Divide your picture into 16 (or however many you want) sections
Create a new layer and name it: grid
Use the pencil and ruler tool to divide your picture into equal sections. When using the pencil tool, you can hold down the shift key to make your lines straight. It is very important to make sure each section is exactly the same size; otherwise the image can be distorted.
Step 4: Make 16 layers
Use the rectangular marquee tool to outline the box in the upper left hand corner of your picture. Right click inside the selected area and choose: layer via copy. This will make that section its own layer. Now do this same thing for the remaining 15 sections. It makes things easier to label each layer numerically 1-16, layer 1 being the upper left hand corner.
Step 5: Create a 4 x 6 blank document
After you create your blank 4 x 6 document, go back to your picture that is now divided into 16 equal sections. Click window, arrange, tile. Now you can see both files. With layer 1 selected, use the arrow tool in the upper left hand corner to drag layer 1 to the new blank document. Click edit, free transform (Ctrl + T) and scale the image so it fits perfectly in the document. Now save that image.
Do this process for the remaining 15 sections.
Step 6: Time to print them!
Now you should have each section saved as its own 4 x 6 picture. To make sure everything turned out okay, you can print each picture from your printer. Since I had never done this before, I cut each picture out and taped them all together to see how it looked.