Adobe Photoshop CC 2014 v.14.xx - Manual (Page 844)

File formats
Note:
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Note:
Choosing a file format
About file compression
Maximize compatibility for PSD and PSB files
Photoshop format (PSD)
Photoshop 2.0 format
Photoshop DCS 1.0 and 2.0 formats
Photoshop EPS format
Photoshop Raw format
Digital Negative format (DNG)
BMP format
Cineon format
DICOM format
GIF
IFF
JPEG format
Large Document Format (PSB)
OpenEXR format
PCX
PDF
PICT File
PICT Resource
Pixar format
PNG format
Portable Bit Map format
Radiance format
Scitex CT
Targa
TIFF
WBMP format
If a supported file format does not appear in the appropriate dialog box or submenu, you may need to install the format’s plug-in module.
Choosing a file format
Graphics file formats differ in the way they represent image data (as pixels or vectors), and support different compression techniques and
Photoshop features. To preserve all Photoshop features (layers, effects, masks, and so on), save a copy of your image in Photoshop format
(PSD).
Like most file formats, PSD supports files up to 2 GB in size. For files larger than 2 GB, save in Large Document Format (PSB), Photoshop Raw
(flattened image only), TIFF (up to 4 GB), or DICOM format.
The standard bit depth for images is 8 bits per channel. To achieve greater dynamic range with 16- or 32-bit images, use the following formats:
Formats for 16-bit images (require Save As command)
Photoshop, Large Document Format (PSB), Cineon, DICOM, IFF, JPEG, JPEG 2000, Photoshop PDF, Photoshop Raw, PNG, Portable Bit Map,
and TIFF.
The Save For Web & Devices command automatically converts 16-bit images to 8-bit.
Formats for 32-bit images (require Save As command)
Photoshop, Large Document Format (PSB), OpenEXR, Portable Bitmap, Radiance, and TIFF.
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