If you have more than one layer, then that increases the file size further. The file when saved may be compressed or not depending on your TIFF settings, but the files are always going to be larger than the raw files. My advice would be don't worry about file sizes, increase your storage if necessary. That way you can focus on the best image quality. The one exception is when sending a file onward, in which case you may need to export a copy and use a lossless lossy compression format such as jpeg but that should never be used for master files.
I also seem to dimly remember an issue where some compression would work less well possibly to the point of increasing file-size in 16bit — was it LZW maybe? That's right. There's one more thing with compression: it can be computationally intensive and drastically increase open and save times. In many situations that's much more important than the resulting file sizes.
As Dave says - don't worry about it, get more disks. Image files will be big and take up a lot of space, and sooner or later you will run out. Better to have a long term strategy for it, than trying to postpone the inevitable by compression.
Yes, except that the raw file is one single channel. The demosaicing into R, G and B components isn't in the file - it's in the raw processor, knowing the layout of the Bayer filter array in front of the camera sensor. True - but I was just trying to get the concept over that the raw file does not contain full colour info for every pixel. I know you know. Welcome to the Community! Skip Take tour. Adobe Support Community.
Turn on suggestions. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Showing results for. Show only Search instead for. Did you mean:. Why are my TIFF files so large? Publish Preview. Edited by raddad! TIFF files are lossless formats. A JPEG file has an algorithm that compresses many of the colors in order to reduce file size. It looks at every pixel and if it has used that color in a previous location within the image it just refers the color to the previous identification.
The down side to this is that it has a tolerance level for the actual color and isn't exactly the same as the original color. Therefore your file size may be smaller, but it has few colors pixel by pixel. It doesn't sound like a loss but it is. The best comparison is an MP3 file is compressed while the CDR compact disk recording file is not, in audio terms. Post Reply Preview.
Nieblung 13 years ago. I would also like to add that if you are getting photos printed, having the TIFF file to print from will give you better results. So long as you are not printing in anything larger than a 5 X 7 image size on a 3 mp or smaller size camera, you will not see any difference to the naked eye unless you have altered the original image by increasing the size of the area to be printed.
For example, if you have a picture of a pin head in a photo and you blow it up to see if someone has written the Declaration of Independents on said pin head. Viewed 74k times. The dimensions of the pictures I'm looking at are around by pixels. DPI is Thanks :. Improve this question. Tim Tim 53 1 1 gold badge 1 1 silver badge 4 4 bronze badges. PNG will get you some improvement. Even -quality 75 looks pretty good and is much smaller. If your images aren't photos PNG might work better.
Add a comment. Active Oldest Votes. Edit: If you are using Photoshop, you would simply "Save As", choose. TIF as your format and location. After that you should get a dialog box see below with compression options. Improve this answer. ErickP ErickP 5 5 silver badges 15 15 bronze badges.
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