Invoice OCR in Zapier: Loop Over Every Attachment in a Shared Mailbox with PDF4me AI Document Parser
PDF4me AI Document Parser is a Zapier action that reads a document with AI and returns its fields as JSON. Paired with Looping by Zapier, it handles the normal case in accounts payable: one email carrying several invoices, each attachment parsed in its own run.
Every invoice-OCR tool demonstrates the same thing, which is one document going in and clean fields coming out. That is not how invoices arrive. They arrive as an email to a shared inbox, from a supplier who attached three PDFs and wrote "PFA" in the body. The interesting problem is not reading one invoice, it is that a single trigger has to turn into several parses, and most walkthroughs quietly skip it by watching a folder where somebody has already split the files apart. This Zap does not skip it. Three steps, and the middle one is the loop.