Custom certificate (plugin)

OK,  put your moodle in debug mode, could help,  anyone more has this issue ?

Verify your html code, tcpdf has a limited HTML support, so don't use too much elaborated HTML,  verify text position,  alignment , tables work better for text position with TCPDF.

When adding a certificate image file, it overwrites the text on the certificate.  removing the image shows the text.  I've even created a PNG web safe (transparent) image to attempt to solve this- any ideas on whats causing this?

Using Latest version of moodle (2.9.2) on windows IIS/PHP 5.5 with Simple certificate 2.2.2.  No weird HTML is in the certificate text.

Due to file upload size restrictions, Example certificates are available to view here: https://www.dropbox.com/s/19oyrqtorb1njxa/Archive.zip?dl=0 

Certificate HTML:

<div style="width:800px; height:600px; padding:20px; text-align:center; border: 10px solid #787878">

<div style="width:750px; height:550px; padding:20px; text-align:center; border: 5px solid #787878"><img 

<span style="font-size: 25px;"><i><b>HOA University</b></i></span><br><br>

       <span style="font-size:50px; font-weight:bold">Certificate of Achievement</span>&nbsp;<br><br>

       <span style="font-size:25px"><i>This is to certify that</i></span>

       <br><br>

       <span style="font-size:30px"><b>{USERNAME}</b></span><br><br>

       <span style="font-size:25px"><i>has completed the course</i></span> <br><br><span style="font-size: 30px;">{COURSENAME}</span><br><br>

       <span style="font-size:20px">with score of <b>{GRADE}</b></span><br><br><p style="text-align: left;">&nbsp; &nbsp; &nbsp;Date Issued: {DATE}<br></p><p style="text-align: left;"><span style="color: rgb(85, 85, 85); font-size: 12px;">&nbsp; &nbsp; &nbsp; Certificate Code: {CERTIFICATECODE}</span><br></p></div>

</div>