I’m building a workflow in Bubble where I need to work with publicly available PDF upload forms on external WordPress websites (for example, forms created using WPForms, Gravity Forms, or custom file-upload forms).
The goal is not to bypass authentication or upload files without permission. I’m only interested in:
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Upload forms that are intentionally public
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Use cases where users are allowed to submit PDFs
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Legitimate automation or integration scenarios
I’m trying to understand:
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How to identify whether a WordPress site exposes a public file-upload form
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Whether Bubble’s API Connector or backend workflows can submit PDFs to such forms
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How file uploads are typically handled (multipart/form-data, tokens, redirects, etc.)
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Best practices to stay within security and usage limits when integrating Bubble with external upload forms
If anyone has experience integrating Bubble with third-party file upload forms, examples or guidance would be greatly appreciated.