Can UK and EU customers use PDFCrowd if some infrastructure is in the US?

Yes, subject to the customer's own legal and data-transfer requirements. Some PDFCrowd service infrastructure and subprocessors are located in, or may process data in, the United States. Where Customer Personal Data is transferred outside the EEA, or outside the UK where UK GDPR applies, PDFCrowd uses transfer safeguards under GDPR Chapter V or UK GDPR international transfer rules, such as adequacy decisions, the EU-US Data Privacy Framework or UK Extension where applicable, EU Standard Contractual Clauses, the UK International Data Transfer Agreement, or the UK Addendum to the EU Standard Contractual Clauses.

Customer content submitted for conversion is transient. Uploaded files, submitted HTML, and generated PDF or image output are kept only as long as needed to process the conversion and make the result available, then deleted from active processing systems within 30 minutes. PDFCrowd does not create backup copies of uploaded files, submitted HTML, or generated output files. See Data Security and Privacy, Data Processing Agreement, and Subprocessors for details.