Problem: Article: Find and double-click the PDF file you want to edit on your computer. If your default PDF reader is not Preview, right-click on the file, hover over Open With, and select Preview. This method will allow you to paste an image into your PDF, however, you won't be able to move around any existing text or formatting in the file. You can find this button in the upper-left corner of your screen. It will open your file options on a drop-down menu. This option will allow you to convert your PDF into a different file format. You'll have to export your PDF as an image file in order to insert another image. Click the Format drop-down at the bottom of the Export window, and select PNG. This will create a new file from your original PDF. The file's name will be the same as your PDF, but instead of ending with .PDF, it will end in .PNG. It's at the top-left corner. The original PDF will be left unchanged. Find the image you want to insert on your computer, and double-click on its icon to open it in Preview. If your default image preview software is not Preview, right-click on the file, hover over Open With, and select Preview. This will select the entire image. You'll see a dashed outline around your selection. If you don't want to insert the whole image, click and drag one of the blue dots on the dashed outline around your selection, and select the part of the image you want to copy to your PDF. This will copy your image selection to your clipboard. You can now paste it into your converted PNG file. This is the "PNG" file you created when exporting your PDF as an image. Pasting an image into a PDF is not supported in Preview, so make sure you open the file that ends in "PNG" instead of "PDF." This will paste the image you've copied into your PNG file. You can position your image anywhere in the PDF file. You'll find blue dots around the outline of your pasted image. Click and drag any one of these to make your image bigger or smaller. If you don't see an outline or blue dots, click on the image to select it. The outline should automatically show up. When you're done editing, click the File menu on the top-left corner of your screen. This option will allow you to save your edited PNG file as PDF. Click the Save As field at the top of the dialogue box, and enter a name for your new PDF file here. Alternatively, you can leave the file name unchanged, and replace your old PDF file with the new, edited PDF. To do this, click the Replace button in the confirmation box after clicking Save.
Summary: Open the PDF you want to edit in Preview. Click the File tab on the menu bar. Select Export on the File menu. Select PNG as your file format. Click Save in the Export window. Click the red x to close the file. Open the image you want to insert in Preview. Press Command+A on your keyboard. Press Command+C on your keyboard. Open your PDF's PNG export in Preview. Press Command+V on your keyboard. Click and drag the pasted image to position it. Click and drag the blue dots to resize the image. Click the File tab on the menu bar. Click Export as PDF on the File menu. Enter a file name for your PDF.

In one sentence, describe what the following article is about: If you're just trying to test things out, open up a blank new image and put some basic text on the page. You can also just press the T key to get to the text option. You should see a new bar appear on the top of you screen with font options, size, spacing, etc. With your text selected and your text took still on, find the set of three little sets of lines, meant to mimic lines of text on the page. Hover over the second one and it will say "center text." Click it to center the text.
Summary:
Open the desired image in Photoshop. Click the "T" in the leftmost tool bar. Press the "center text" button to center-justify the text.