Optimizing error: An error was encountered while flattening transparent objects

[complotoli]

Hello,

I get the above error message while trying to save a 700 page PDF as optimized PDF. The same error message appears when I try to use the «transparency flattener».

What other possibilities are there for file size reduction?

Thanks for any hint!

[Test Screen Name]

Flattening transparency typically makes files much BIGGER. why is it included in your plan for file size reduction?

[complotoli]

Thanks, Test Screen Name,

I hadn't known that, I was sure it was the other way around. Nonetheless, now I have not set that hook for transparency flattening, now I get an «error while removing private data»… Next I uncross «Provate data», ten I get an error «could not save the document».

I renamed it, tried another location for saving – nothing worked.

[Test Screen Name]

These many different errors suggest a big problem inside the PDF. If you made it, how did you do that?

[complotoli]

It's a catalogue, exported from InDesign CS6, with lots of bookmarks and hyperlinks included. A great many of the links didn¨t make it into the PDF, so I had to manually set them or update existing ones. With lots of saves on the way…

[Test Screen Name · Accepted solution]

Somewhere along the way I think the file has messed up (I'm assuming you aren't trying to use an ancient version of Acrobat). You could check this by getting the original export and trying to optimise that.

Recovery may be tricky or impossible, and you certainly shouldn't distribute the damaged one. But you may be able to drag pages into a new document, sometimes that leaves junk behind.