Hi Denis,
Here is a screenshot and copy of the PDF that was not displaying information correctly. Here is the screenshot of the PDF being viewed in Google's PDF viewer:
Note that the price data on the right hand side is either white or transparent. You can select it and copy and paste it. This is also how the document appeared in Apple's PDF viewer. However, it looked fine in Adobe Acrobat.
The estimate was created with only a slightly modified layout. I replaced the logo and changed the colors. Aside from that, it is identical to the SimpleEstimate design.
Here is a copy of the PDF that was not displaying properly: http://ahb.me/Mqj
The same was true for a Purchase Order PDF that was generated and sent out.