Photoshop's PSD format saves projects by storing individual layers. When you save a PSD file for external use rather than editing, you must convert the project to either a raster graphic or a vector graphic. Raster graphics store images as pixels, so their quality drops when you enlarge them. Vector graphics store images using mathematical algorithms and they remain clear no matter how much you enlarge them. If you create graphics for large-scale use, such as a banner or a billboard, convert them a vector graphics format such as PDF.
Launch Photoshop and press "F7" to open the Layers panel.
Click the "Eye" icon beside each non-vector layer to hide it. These layers include painted layers. Vector layers include shapes, paths and text.
Press "Ctrl-Shift-S" to open the Save As dialog box.
Click the "Format" drop-down box. Select "Photoshop PDF (*.PDF, *.PDP)."
Click "Save" to save the PSD file as a PDF vector graphic.
- Comstock/Comstock/Getty Images