How to turn off rounded corners in preview when viewing a PDF

I just upgraded to Tahoe and am not happy about how Preview by default rounds the corners of PDFs when viewing them. This is unacceptable. How do I turn this off?


PDFs are supposed to look consistent no matter how they're viewed and rounding the corners on a document is totally unneccesary and compromises the design of a PDF.


Overall, I'm not a huge fan of the UI updates in Tahoe and iOS 26. Liquid Glass is highly distracting. The rounded corners everywhere waste space. But while I can tolerate some of the new UI elements, changing how a PDF is viewed is where I draw the line.


Please for the love of God get rid of rounded corners in preview PDFs in the next Tahoe update.


MacBook Pro 14″, macOS 26.0

Posted on Sep 16, 2025 7:05 PM

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Question marked as Top-ranking reply

Posted on Oct 4, 2025 8:47 AM

62 replies

Dec 1, 2025 8:55 AM in response to chinois

Me too. I've managed to disable most of the pointless "liquid glass" features. The rounded corners are a silly change--I assume Apple hired some new guy who needed to make a mark by some sort of change, and just made it look--again--that Apple will decide what users need and do not need (e.g., simplicity and options).

In other words, not only is Steve Jobs dead, he's still dead. Jobs was a master chef but his replacement is only a Cook.

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How to turn off rounded corners in preview when viewing a PDF

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