Sep 6,  · What Does It Mean to Flatten a PDF? When a document with transparent objects, such as images or text, is converted into a PDF, these elements are processed as many small . Paperless Solutions · 24/7 Tech Support · Money Back GuaranteeService catalog: Document Management, Electronic Signatures, Cloud Stora. Aug 12,  · If your document or artwork contains transparency, to be output it usually needs to undergo a process called flattening. Flattening divides transparent artwork into vector