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For a resolution of 1284x2282 (often used for modern iPhone wallpapers), a "solid guide" should account for UI elements like the clock and dock.

Place a guide at approximately 30% from the top to mark the "safe area" below the lock screen clock. 1284x2282_c2dce1ea0a23a03302be143722ad875d.jpg

Choose File > Save As or Save a Copy and select JPEG. Ensure the guides are visible on your screen when you hit save. For a resolution of 1284x2282 (often used for

Using "Export As" or "Save for Web" will strip metadata and guides to reduce file size. Ensure the guides are visible on your screen

To create a "solid guide" for an image with the dimensions (a common mobile wallpaper or screen resolution), the process depends on whether you are looking to embed non-printing layout guides for design work or convert/edit the image itself . 1. How to Embed Design Guides (Photoshop)

JPEG uses DCT (Discrete Cosine Transform) compression. To keep the guide "solid" (high quality), always save with a quality setting of 10 or higher (80%+) to avoid pixelation around sharp edges. Summary Table for 1284x2282 Guide Setup Key Command/Tool Preserve Metadata Save as Standard JPEG File > Save As (Not Export) Precision Layout New Guide by Percent View > New Guide (set to 50%, etc.) Format Change Web Conversion Adobe Express

If you want to save layout lines (guides) directly within a JPEG so they appear when others open the file in Photoshop: