It seems to affect printing also. All those 'll' in 'all' get blocky and fat when printing a tiny text on a complex background. I have to idea why this happens if the option is for Viewing only, but it seems to be true :(

This is just another Adobe blunder. Obviously, this should be a feature option in export or have it disabled by default.

Adobe is preventing us from having control over how our file is displayed and refuses to listen to its customers.

This is just like the freaking hyphenate option that can't be disabled globally in Illustrator.

The product managers at Adobe are an embarassment to the industry.

@Luke Anyway I agree to turn this off by default.

The "enhancing" algorithm is IMO completely faulty anyway and even if it stays on by default, it should be fixed at least.

@miroslav – that’s awesome, but it’s sad that you even need to go to the trouble

Hi,
This bothered me for a long time. I had this problem especially in my PDF files with a company logo that contains vectorized text.

I'm a programmer and I found a way how to fix it. I created a program that can modify PDF files in a way that Acrobat Reader can't recognize vertical and horizontal lines and cannot "enhance" them.

I made it available online, so anyone can "repair" his PDF files for a very small fee.

https://www.majitelbytu.cz/pdf-fix.php

I hope it will help someone.

Agreed. HiDPI screens are very common and automatically enhancing thin lines creates a negative end-user experience. For example, one has to explain that "it doesn't really look like that" when using a PDF. This affects many types of documents, including detailed illustrations.

This should be kept as an accessibility option, however, not as the default.

We’re not using 14” CRT monitors anymore, Adobe! Get with the times.

Let's be fair. There hasn't been "little" response from Adobe on this issue. There has been NO response from Adobe on this issue, unless you call an "Under Review" flag from nearly two years ago a "response."

There is little attempt on the part of Acrobat project management or, perhaps, their boss(es)---one never knows what the politics are---to conceal their disdain for what creative professionals might need or want. It's a mystery why this is so, given that Adobe is a company built on providing tools for creatives. Ignored problems like this are a symptom of the broader management issue.

A default is a trivial item to change in the code, and this specific complaint could have been addressed in a matter of less than an hour of programming time during any release cycle in the last dozen years. All it needed was a manager to add it to a to-do list. It certainly wasn't that customers weren't complaining about it.

This disdain for customers does seem to be peculiar to the Acrobat product team. Perhaps they're old Quark people.

This issue has been going on year after year, with little response from Adobe. Its annoyed so many professional users when clients cannot view documents correctly without being told to switch off the dreaded 'enhance thin line' option.
Please, Adobe just default the option 'OFF'! or better still, remove it completely.

@Bernard It is in the Edit > Preferences menu, under Page Display, in the Rendering subsection.

I am also sick and tired of having to explain to clients how to turn it off, so they can see what the artwork is SUPPOSED to look like.

Since I'm a french user, I can't find where is this option. Could you indicate me the pathway to it ?
Thanks

Yes, turn this off, I spent so much time getting my vector art pixel accurate just to have the graphics ruined by this option.

You've got my vote. My tables look horrible!

I am with Bo. I also work at an architectural firm and it kills our drawings. There is no need for me to have to export 2 different files, one for printing and one for presentations.

Please fix it. There is no need for this option to be the default.

+1

strong agree. this causes way too many workarounds in my work. for the most part, architectural drawings do not look good, as intended, or even easily readable with this "feature" enabled.

There is no reason why Adobe cannot fix this issue.

Adobe - Please get started on the fix.

Thanks

Holy **** I literally have just lost work because of this! F..K, why am I paying $600 a year for this kind of BS!