'PSD' is a file extension for which type of computer file?

Correct option is B

A file with the .PSD extension stands for "Photoshop Document", which is the default file format used by Adobe Photoshop – a popular image editing software. PSD files support multiple layers, including text, masks, alpha channels, transparency, and other advanced editing elements.

This format allows designers to save their work in editable format, unlike formats like JPG or PNG, which are flattened images.

Important Key Points:

1. PSD = Photoshop Document
2. Supports layers, masks, effects, and adjustments
3. Can be reopened and edited in Adobe Photoshop
4. Used by graphic designers, photographers, UI/UX designers, etc.
5. PSD files are not suitable for direct use on the web – they are usually converted to PNG, JPG, or TIFF for sharing or publishing.

Knowledge Booster:

• Other image file formats:
• .JPG/.JPEG – Compressed image file (lossy)
• .PNG – Lossless format, supports transparency
• .TIFF – High-quality, used in publishing
• .GIF – For animations (limited colors)
• Adobe Acrobat uses .PDF (not PSD)
• Microsoft Word uses .DOC or .DOCX
• PaintShop Pro often uses .PSP or .PSPIMAGE, not PSD