Looking for PDF versions of Companies House accounts bulk data (where XBRL/XHTML not available)

Hi,

I’m working on a project that processes Companies House accounts data in bulk.
Currently, I can extract financial information from the XBRL/XHTML files available in the monthly bulk data ZIPs.

However, for some companies, XBRL/XHTML versions are not available
I’d like to know if there is any official or alternative way to obtain the PDF versions of those specific filings (where the structured data is missing). other then the filing api.

Is there any public resource, bulk endpoint, or archive that provides access to these PDFs?

Thanks in advance for your help!