[Solved] Converting "zif" files (Zoomify) to JPG - multiples?
Posted: Fri Jun 04, 2021 3:18 pm
Hi, I have a bunch of .zif files that I want to convert to JPG.
I don't know a ton about the zif files, they are created by an app called Zoomify ( http://www.zoomify.com/ ) that is used for easily dealing with high-res images that are to be zoomed and panned on web pages. I believe the .zif format is really a type of tiff. I *think* what is going on in the .zif format is that there are multiple versions of each image - a high res version and several lower-res versions - so when the image is first shown, only the lowest-res version is displayed allowing it to be fast, and when one zooms or pans on the web page the server does some trickery so that only the portion of the image you're looking at is transmitted, so much faster than just sending the entire hi=res to the user's browser. (Side benefit is making it hard for people to download the high-res image if that's a need from the website.)
Anyway, GC is happy to convert ZIF to JPG which is what I want, because we're switching away from using Zoomify and I don't have good access to the original files that were turned into ZIF!
The problem is the output for each ZIF file is several JPGs with various resolutions - when converting GC says "processing page 1 of 6" etc for each image. All the output JPGs look ok to me, but I have no need for the lowres ones, only the full resolution.
Is there a way to get GC to convert ZIF to JPG and only give me a single output file, the full res image?
Thanks!
I don't know a ton about the zif files, they are created by an app called Zoomify ( http://www.zoomify.com/ ) that is used for easily dealing with high-res images that are to be zoomed and panned on web pages. I believe the .zif format is really a type of tiff. I *think* what is going on in the .zif format is that there are multiple versions of each image - a high res version and several lower-res versions - so when the image is first shown, only the lowest-res version is displayed allowing it to be fast, and when one zooms or pans on the web page the server does some trickery so that only the portion of the image you're looking at is transmitted, so much faster than just sending the entire hi=res to the user's browser. (Side benefit is making it hard for people to download the high-res image if that's a need from the website.)
Anyway, GC is happy to convert ZIF to JPG which is what I want, because we're switching away from using Zoomify and I don't have good access to the original files that were turned into ZIF!
The problem is the output for each ZIF file is several JPGs with various resolutions - when converting GC says "processing page 1 of 6" etc for each image. All the output JPGs look ok to me, but I have no need for the lowres ones, only the full resolution.
Is there a way to get GC to convert ZIF to JPG and only give me a single output file, the full res image?
Thanks!