kaliona

Thanks for the explanations David and Rick. Makes sense to me now. Thanks for your suggestion too Myrddin, I might try a PNG compressor to keep the file size down. Great program, great forum!

The file definitely goes from 313 KB to 2,048 KB. No typo. I don't know exactly what metadata is, but that much of an increase after doing nothing but opening the file and immediately saving it can't possibly be caused by additional metadata.

Saving as a PNG also would work for me. Yes it is a little smaller than saving as a TIF but the PNG format is still 5 times larger than the original as opposed to 6 times larger when saved as a TIF. I'm still looking for the cause. The resolution doesn't appear to be changing. I just tried the same thing with Microsoft Paint and when I saved the file as the same format (TIF), it went from 314 KB to 478 KB. Now I can live with that small increase.

I didn't add anything to the image. All I did was use the eraser and erased a few pixels. Then I just clicked on "File", and then "Save". The image was saved as a TIF, just like the original, but increased in size as I described in my first post. I also tried this: I opened a TIF image, did NOTHING to it, and saved it. The same thing happened...the file size increased from 300 KB to 2048 KB. I'm confused.

Paint Newbie here. Great product, and I'm glad I stumbled across it. I used Paint to edit a .tif image that was originally about 300 KB in size. All I did was erase a few objects. When I saved the file, the file size jumped from 300 KB up to 2048 KB!!! Can someone tell my why? And is there a setting to keep it from doing that? Thanks