HTML to PDF Converter: PDF pages are overlapped in fist page only

when I decoded and compared the older files, I found that below tag is missing.
<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 7.1-c000 79.a8731b9, 2021/09/09-00:37:38 (debug)">
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<rdf:Description rdf:about=""
xmlns:xmp="http://ns.adobe.com/xap/1.0/"
xmlns:pdf="http://ns.adobe.com/pdf/1.3/"
xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/"
xmlns:dc="http://purl.org/dc/elements/1.1/">
<xmp:CreateDate>2023-01-20T12:48:56Z</xmp:CreateDate>
<xmp:CreatorTool>Adobe HTML2PDF creator 2.0.08162018</xmp:CreatorTool>
<xmp:ModifyDate>2023-01-20T12:48:56Z</xmp:ModifyDate>
<xmp:MetadataDate>2023-01-20T12:48:56Z</xmp:MetadataDate>
<pdf:Producer>Adobe HTML2PDF creator 2.0.08162018</pdf:Producer>
<xmpMM:DocumentID>uuid:06014d54-b617-11b2-0a00-28025342f955</xmpMM:DocumentID>
<xmpMM:InstanceID>uuid:06014d55-b617-11b2-0a00-010000000000</xmpMM:InstanceID>
<dc:format>application/pdf</dc:format>
</rdf:Description>
</rdf:RDF>
</x:xmpmeta>