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Photoshop files and formats - software

 

People often ask me: What image file formats will Photoshop open or save in? What are the advantages/disadvantages?

Photoshop has the capability to open and save many atypical diagrammatic files. Here are some of the most all the rage ones.

Note: When you open an image file other than a Photoshop one, that image will evade to the backdrop layer.

. psd, . pdd, . eps
Photoshop File. This design preserves the in rank in all the layers. If you're going to carry on running with a picture, this is the best arrangement to use. File size can be quite large, however. Note: It is advisable to save your work in the most up to date Photoshop design available. For example: if you have Photoshop CS and are sent a Photoshop 7 file, you be supposed to save it as a Photoshop CS file to conserve any basics that may not be supported by Photoshop 7.

. jpg, . jpeg . jpe
This design compresses the images, so that in a row (details and colour subtleties) are lost. You can decide on how much you want to compress the image. Good arrangement for use on the web. Small file sizes. Millions of colours.

tif, . tiff
Common in use with early scanners. Will construct high characteristic images, but very large files. Not for use on the web.

. gif
Pronounced both "Gif" and "Jif", this file is one of the most admired for web graphics as it loads quickly. 8 bit design (256 colours max. ). It has potential for transparent colour and animation.

. png
New design for use on the web that is deliberate to exchange both gif and jpeg. Compressed, millions of colours, transparencies. It compress in a atypical way than jpeg, and has difficult possibilities, such as alpha conduct (opaque or moderately transparent colours). The only bother is: Internet Voyager doesn't aid these! In 8 bit (256 colours) mode it compresses change for the better than gif.

. bmp
Windows bitmapped image. Used by Microsoft Windows applications. Good quality, large file size. Not for use on the web.

. wmf
Windows MetaFile. Beneficial for clipart, and can be used to make large area, small sized backdrop files.

. pcx
Older common end format. As good as obsolete now. Not for use on the web.

. psp
Internal design for Paint Shop Pro, constructive if you want to swap files connecting these two applications.

. pcd
Kodak PhotoCD format, used with Photo Mounting - though most photo processors will save your photos as jpegs if you ask them to.

. pdf
Portable Certificate File. Adobe's file approach that allows electronic cross platform distribution of documents.

So what's the best configure for web graphics: gif or jpeg?

The all-purpose rule of thumb is to use gifs for diagrams, line drawings, illustrations, and similes that control large areas of flat colour, and jpegs for photographs and descriptions with incessant colour tones. The jpeg design has a very good compression rate, but compression reduces the attribute of the image, so it's best to carry out trial with the tools in Image Ready until you have the optimal quality/file size. The gif format, on the other hand, has a minor file size - but a incomplete range of colours.

Shaun Pearce is a author and video maker. His hottest production, "Photoshop Master", is an interactive video tutorial series. It shows you how to get the most from Photoshop, and can be downloaded from http://www. learnphotoshopfast. com


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