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Issue metadata

Status: Assigned
Owner:
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 3
Type: Bug
Team-Accessibility

Blocked on:
issue 685242



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Same web page printed to PDF is high resolution on Firefox, low resolution on Chrome

Reported by tsf...@gmail.com, Nov 11 2017

Issue description

Chrome Version       : 62.0.3202.89
OS Version: Linux Mint 18.1
URLs (if applicable) :Wikipedia page used as test
Other browsers tested:
  Add OK or FAIL after other browsers where you have tested this issue:
     Safari 5:
  Firefox 4.x:OK (Firefox V-56.O)
     IE 7/8/9:

What steps will reproduce the problem?
1. Open any page on Wikipedia
2. Print the page to PDF on Chrome
3. Print the page to PDF on Firefox

What is the expected result?
Both PDFs should turn out to be the same resolution on the same computer and both PDFs should allow zooming to at least 250% and still provide sharp images.

What happens instead of that?
Chrome PDF is almost unreadable at 250% while Firefox looks just fine at 250% resolution. (see attached test JPGs)

Please provide any additional information below. Attach a screenshot if
possible.
The Linux computer is a 2-years old 64 bit system with a 20" monitor, 8GB RAM, 1TB-HD, AMD CPU and Radeon GPU. I have also performed the test on a 4-years old HP computer with Windows-10-OS 24"monitor, Intel CPU and no GPU. On the older Windows system there was no difference in resolution between Chrome (V-61.0.x) and Firefox (V-56.0.x), they were both high resolution. 


UserAgentString: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.89 Safari/537.36



 
ChromeTest.jpg
55.7 KB View Download
FirefoxTest.jpg
45.2 KB View Download

Comment 1 by woxxom@gmail.com, Nov 11 2017

Just in case, make sure you can reproduce in a clean profile without chrome extensions (e.g. in an incognito window), and the printer destination is the built-in "Save As PDF" (it has a blank sheet icon).

Comment 2 by tsf...@gmail.com, Nov 11 2017

I guess it is an extension called HIGH CONTRAST 0.9.3 that interferes with
"save as PDF" because in incognito mode I get  a perfect high resolution
copy. See attached. Unfortunately without that extension some web pages are
faint and washed out, nearly impossible to read.
Components: Internals>Printing
Cc: vamshi.k...@techmahindra.com
Labels: Needs-Triage-M62 Needs-Feedback Triaged-ET
"Unable to reproduce the issue on the reported chrome version stable 62.0.3202.89 and on the latest stable 62.0.3202.94 using Windows 10, Ubuntu 14.04 and Mac 10.12.6. From comment#2  its clearly understood that the issue is not seen in incognito mode.

@Reporter: Could you please confirm the same by checking in a new profile and let us know the behavior. 

Thanks!"

Comment 5 by tsf...@gmail.com, Nov 13 2017

This is to confirm that in a clean profile, withour chrome extension(s), the printing problem I reported does not exist.
Project Member

Comment 6 by sheriffbot@chromium.org, Nov 13 2017

Labels: -Needs-Feedback
Thank you for providing more feedback. Adding requester "vamshi.kommuri@techmahindra.com" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Cc: krajshree@chromium.org
Labels: Needs-Feedback
tsftom@ - Could you please confirm if the issue can be closed as it is not reproducible on a clean profile as per comment #5.

Thanks...!!

Comment 8 by tsf...@gmail.com, Nov 14 2017

Yes, this issue can be closed as per comment #5, thank you all.
Project Member

Comment 9 by sheriffbot@chromium.org, Nov 14 2017

Labels: -Needs-Feedback
Thank you for providing more feedback. Adding requester "krajshree@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Comment 10 by woxxom@gmail.com, Nov 14 2017

Reporter, I think you can submit the report to that extension's support forum/email/site.
Just to confirm, is this the extension in question? https://chrome.google.com/webstore/detail/high-contrast/djcfdncoelnlbldjfhinnjlhdjlikmph

Comment 12 by tsf...@gmail.com, Nov 15 2017

That is correct, that's the extension.
Cc: lpalmaro@chromium.org
Components: UI>Accessibility
Status: Untriaged (was: Unconfirmed)
lpalmaro: Can you help us out here? The project website for this a11y extension is sort of dead. Where can we forward this bug to? Maybe there's a better way of interacting with the DOm to provide the a11y feature, without making the printing output look terrible.
Blockedon: 685242
We're working on native high contrast mode. It's been going slowly due to other priorities but getting closer. That will completely replace the extension and should solve issues like this one.

crbug.com/685242

Comment 15 by tsf...@gmail.com, Nov 15 2017

I appreciate the effort. Also I just found out that in Linux Mint (my OS), under Preferences > Accessibility > Visual > High Contrast, I can make system-wide changes that applies to most of Chrome browser as well, without affecting  printing.
Cc: rhalavati@chromium.org
dmazzoni/rhalavati: Do either one of you want to own this bug? Presumably when bug 685242 is fixed, this bug will go away.
Owner: dmazz...@chromium.org
Status: Assigned (was: Untriaged)

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