Microsoft has confirmed the existence of a bug that has the potential to cause some severe issues with mission-critical data as well as Bluetooth bugs cause by the Creators Update.

Be cautious if you’re using the Print to PDF option

If you’re using Microsoft Edge to “Print to PDF” you are strongly advised to double-check the files as a strange bug was recently detected. This issue is a reminiscence of a bug that afflicted Xerox photocopiers a few years ago and leads the browser to display one set of numbers and to print another.

Microsoft has confirmed its existence and it highlighted the fact that it can cause serious issues.

The person who originally reported the issue gives an example in which Windows 10’ default web browser “displays 123456 in PDF but prints 114447.”

Unknown cause

The cause of this issue is still unknown and it looks like it varies from one system setup to another. It seems to be reproducible in Microsoft Edge 38.14393.1066.0 running the Microsoft EdgeHTML engine 14.14393 and also Microsoft Edge 40.15063 running EdgeHTML 15.15063.

The problem was first highlighted on Microsoft’s Developer forum:

Edge displays PDF correctly but printed content differs notably.

Printed content depends on selected printer, on printer settings, and on used computer (please try a different setup if first result looks correct).

Attached example was printed using “Microsoft Print To PDF”.

Attached PDF contains a lot of small images with numbers. It looks like these images are printed at wrong positions.

(Possible workaround: Copy the document after printing using a Xerox copier.)

Until a final fix is found, you are strongly advised to double-check the files if you plan on printing something in the PDF format.

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