/drive/community?hl=en
/drive/community?hl=en
11/24/13
Original Poster
Maria Silvana

Bad images display in pdf files and doxs.

Good morning everyone. I would like to inform you that the display of images in pdf or doxs uploaded to Google drive is bad. They look like images to which has been applied to some effect or filter. They seem almost cartoon and this is unacceptable if we want to present the document. I hope you can do something to fix this bug, because, in these conditions, no document can be used, unless it contains only text. Thank you all for your attention and wish you good work. Silvana
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All Replies (4)
Bas Braams
12/16/13
Bas Braams
<<...the display of images in pdf or doxs uploaded to Google drive is bad.>> It is indeed; in fact the display is very bad if color is involved. If a user wants to share a pdf file to a larger community then really the Docs+Drive cloud cannot be used, because when the file is viewed the color resolution drops down to 32 colors at most (5 bits) or even less (16 colors and 16 grays) for images that are a mix of color and grayscale. In practice a user that wants to share a pdf file to the world must use alternatives (Dropbox perhaps, or any other non-Google web site) in order to prevent others from seeing the file through the Docs+Drive pdf viewer.

The issue is known on the forum [1-5], but there isn't a work-around other than avoiding to store public files on Docs+Drive. As an example of just how bad the Docs view is, for mixed color and grayscale images stored on the Docs+Drive cloud and seen through the Docs viewer, please see the following two screenshots. They are images of the same pdf file. The image on the left is produced by the Docs+Drive viewer and the image on the right is a regular view through a browser's built-in (non-GDocs) pdf viewer. The image on the right is the one that one would like to be seen by a visitor.

Once again, if a pdf file is stored on the Docs+Drive cloud then someone visiting that file will see it through the Docs viewer unless the person is savvy and knows how to change settings. It is not reasonable to expect this of a member of the public at large. Therefore one must avoid to place public pdf files that contain color on the Docs+Drive cloud, at least until the Docs+Drive team wakes up to the situation and changes the settings in the pdf viewer. It is probably a quite trivial matter for them to do so; the information is all there. (The pdf files are only corrupted when viewed through the Docs+Drive viewer; the upload process is not the source of the problem and the full information is there in the pdf.)

[1] (2013-05-22) Google Docs Viewer mangling colours on images

[2] (2013-12-03) Re: Low resolution/bad quality for images when printing/exporting to pdf

[3] (2012-12-01) Re: Google Drive PDF viewer is so bad in displaying color

[4] (2012-11-30) Re: horrible pdf image resolution - color blends striate

[5] (2012-12-08) Re: Google Docs Viewer mangling colours on images


12/16/13
Original Poster
Maria Silvana
Thank you for your response. With my helpers, I found a temporary solution. I posted it on my site, at this address:
 
http://www.lachiavenelpozzo.com/come-fare-a/drive-visualizzazione-pdf-e-docx
 
The guide is in Italian, but I hope that it will be useful anyway. Hello to all..
 
Bas Braams
12/17/13
Bas Braams
<<With my helpers, I found a temporary solution.>> Very nice! I followed the first solution on Maria Silvana's web page [1]. The pdf file on the Docs+Drive cloud must be shared "public on the web", not just to anyone with the link. Then one starts with the link given in the browser share dialog and one modifies it as follows: replace the header "https://drive.google.com/file/d/" by "https://googledrive.com/host/" and strip away the trailing "/edit?usp=sharing". The original and the modified link of my previous example in this conversation are as follows.

GDocsImagesGrayscaleColorComposite.pdf on Docs+Drive, original link from the share dialog:

GDocsImagesGrayscaleColorComposite.pdf on Docs+Drive, link modified following Maria Silvana:

Follow the first link and one sees the image through the Docs+Drive pdf viewer. Follow the second link and one sees the image through the browser built-in pdf viewer. The results obtained today are shown in the screen captures left and right in my previous post here.

This is a very serviceable work-around until the Docs+Drive team fix up the rendition in the Docs+Drive viewer. The work-around makes the Google Docs+Drive cloud useful again for such sharing purposes.

I didn't try out the second solution that is offered in [1]. Somehow changing the file name changes the choice of viewer?

[1] (2013-12-16?) Come fare a..‎. Google Drive, visualizzare correttamente pdf e docx ("How-to... Google Drive, properly display pdf docx")

12/17/13
Original Poster
Maria Silvana
Thanks Bas Braams. I'm glad to be helpful.
In the second method, the file is renamed only to distinguish it better. Now I have better explained in the guide and should be more clear. If you need, I'm here, or in my forum (http://la-chiave-nel-pozzo-il-forum.46542.n6.nabble.com/). I reply to the posts in English, also. Ciao
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