As an experienced Django developer and a troubleshooter par excellence, I know just how much an error-free PDF conversion means when it comes to ensuring your content is accessible and consistent across different formats. My familiarity with CKEditor5, xhtml2pdf, and adeptness in handling Base64-encoded images will definitely come into play here, as I can proficiently tackle the problem you're currently facing with PDF conversions where images from CKEditor5 aren't being displayed properly.
Throughout my career, I've focused on building robust and user-friendly applications, often utilizing technologies like RESTful APIs, database management systems (including the ones you mentioned), and automation - all of which are very relevant to your project. I understand the intricacies of embedding images as Base64 encoded strings and can navigate the hurdles that might be impeding your PDF conversion process.
In addition to my technical prowess, I bring a keen problem-solving mindset and a proven track record of delivering high-quality projects within deadline. So if you're looking for someone who can swiftly dive into your project, identify the root cause of the issue, and resolve it effectively- you have found the right freelancer in me! Let’s connect soon to discuss your project requirements further.