Small PSA

[jerryy]

This may not affect many folks here , but it is a problem for those it is affecting.

 

(1) If you are using Mac OS-X and have updated to the very latest os version 10.11.6.

(2) Use "large" TIFF files --- but only certain types of TIFF stored files.

 

You MAY have suddenly noticed you can no longer see your image previews or open your files in Apple's Preview or Photos applications. Or in applications like Pixelmator that depend on Apple's underlying image processing capabilities.

 

This is because the recent os upgrade fixed a very serious security problem that used some kinds of TIFF files to get into your computer. The down side is that as I mentioned, you will (at the time of this writing) not be able to preview the file -- they will show up as either back or white images.

 

This depends on how your TIFF processing software stored the file, as a series of what are called 2d tiles or 1d strips. The 1D strip storage seems to be oaky, but the 2d tile storage was the risky vector that is being stopped.

 

 

IF this affects you, the good news is that your files are still good -- assuming you are the creator, etc, etc, you will be able to still open them in the original software and use them.

 

Hopefully, the situation will be fixed in a much better way as the fix will probably be used in other operating systems as well.

 

There are reports of Capture One 9 users having the problems as well as Affinity Photo users and as I mentioned Pixelmator.

 

One workaround is to use another graphic convertor program to re-store the TIFF files using the 1D strip technique, but this can be time consuming even in batch mode.