Image Compression: Difference between revisions
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===Compression in Photoshop=== | ===Compression in Photoshop=== | ||
[[Image:Photoshopjpegsave.png|right|Save for Web & Devices in Photoshop]] | |||
#Go to '''[http://wiki.bakabt.me/images/2/2f/Saveforwebservices.png File>Save for Web & Devices]''' | #Go to '''[http://wiki.bakabt.me/images/2/2f/Saveforwebservices.png File>Save for Web & Devices]''' | ||
#Change the file type to drop down in the drop down box | #Change the file type to drop down in the drop down box | ||
#Adjust the quality to find the right file size (Look at the bottom left under the preview) | #Adjust the quality to find the right file size (Look at the bottom left under the preview) | ||
;File Type | ;File Type | ||
:Drop down to choose the file type for the image. JPEG, PNG, BMP, etc... | :Drop down to choose the file type for the image. JPEG, PNG, BMP, etc... | ||
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;Final File Size | ;Final File Size | ||
:How big the file will be once you hit save. | :How big the file will be once you hit save. | ||
;Preview | |||
:You can preview how the final image will look after saving. | |||
;Optimized | |||
:It's recommended you have this option turned off. It's not necessary to optimize again it when you're already saving as a JPEG. | |||
;Save File | ;Save File | ||
:Hit save to finish. | :Hit save to finish. | ||
Revision as of 01:42, 24 November 2011
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BakaBT only allows images for descriptions that are <150kb in size. If your image is over the limit, you'll have to compress it to a file size that's acceptable.
JPEG Compression
JPEG is a format for lossy compression of images. This is the simplest and most wide-ranged used image format for compression.
Compression in GIMP
- In GIMP, choose to save as a JPEG. You should see a dialog box.
- Adjust the quality as high as possible until it's just under <150kb.
Compression in Photoshop
- Go to File>Save for Web & Devices
- Change the file type to drop down in the drop down box
- Adjust the quality to find the right file size (Look at the bottom left under the preview)
- File Type
- Drop down to choose the file type for the image. JPEG, PNG, BMP, etc...
- Compression
- How much quality there should be. The higher the quality, the less compression. The less compression, the bigger the file size.
- Final File Size
- How big the file will be once you hit save.
- Preview
- You can preview how the final image will look after saving.
- Optimized
- It's recommended you have this option turned off. It's not necessary to optimize again it when you're already saving as a JPEG.
- Save File
- Hit save to finish.