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Comment by cjoy | Hacker News Reader

At 100% zoom level, the type is not rendered with crisp edges. It looks as if someone had applied a mild gaussian blur. Only once you zoom in, the outlines are sharp as they should be.

I have this issue on a 2012 and 2015 MBP as well as on a MP 5.1. With the built in screens, Eizos and a NEC SV. The only thing thats common across all builds is the OS.

If you think you dont have this issue, compare the rendering of Preview.app at 100% with that of Acrobat.

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Curious: (1) Do you have some screenshots demonstrating this issue and (2) perhaps an example PDF that others could download for the purpose of issue reproduction? (I have not seen this issue, nor am I able to reproduce this issue after repeatedly trying under Preview. I have compared it with on-screen rendering under Acrobat XI, as well.) // Preview 10.0 (944.5), macOS 10.13.4 (17E202), MacBook Pro (13-inch, 2017)

Not the original commenter, but I've experienced

> At 100% zoom level, the type is not rendered with crisp edges. It looks as if someone had applied a mild gaussian blur. Only once you zoom in, the outlines are sharp as they should be.

a number of times.

Running on a 12" (Retina) Macbook w/ macOS 10.13.4 and Preview 10.0 (944.5).

1) Here's a screenshot (100% on left, zoomed in on the right) - https://s3.amazonaws.com/citruspi-tmp/Screen+Shot+2018-06-01...

2) PDF being used - https://cdn.beastnet.works/bfc7d34daac8e7630541d49b591b1b62/...

It also happens within the PDF viewer in Safari - text and icons look a lot crisper when zoomed in.

Same setup, 10.13.3, preview 10.0 (944.4). Unless I'm blind, no issue.

https://image.ibb.co/hXi53J/screenshot.png

15 inch MBP.

I think I've seen what you're talking about, but only on rare occasions. I would open a PDF in Preview and it would be strangely blurry. I would be wondering about the document itself when, as I investigated, I would do something that caused a sudden snap to sharpness. Closing and reopening would not reproduce it, and it happened so rarely and hasn't happened for so long that I forgot about it. I can imagine, though, that if it somehow got stuck in that mode, it would be infuriating.

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