Transparent images are negatively reversed when converting documents to PDF from the NetDocuments Outlook toolbar.

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Created:
Updated:

  • OS: Windows
  • Office: N/A
  • Product: ndOffice 2.0+

Issue

When you create a PDF from the Outlook NetDocuments toolbar (in an active New message/Reply/Forward with an attachment) using the 'Edit' button the output PDF may change the display of images with transparency to reverse colors like a negative image. e.g. black becomes white and white becomes black. 

Cause:

The convert to PDF option uses the Microsoft Office conversion engine. 
The default settings for the conversion opt for PDF/A1 format files to be output for compatibility reasons.
As part of the PDF/A1 specification transparent images are not allowed and so the transparency is not visible causing a 'negative' image.

Solution:

1) Open the document and save it to a PDF in Word first, the default options in Word do not select PDF/A options and it will correctly display. 

We are considering exposing the same options available in Word to users via the Toolbar to address this in future versions. 

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