Remote Document Storage


PSPDFKit Server has been deprecated and replaced by PSPDFKit Document Engine. All PSPDFKit Server and PSPDFKit for Web Server-Backed licenses will work as before and be supported until 15 May 2024 (we will contact you about license migration). To start using Document Engine, refer to the migration guide. With Document Engine, you’ll have access to robust new capabilities (read the blog for more information).

Question: For documents uploaded using an URL, where are annotations and edits to the document stored?


When uploading a document using an URL we don’t persistently store the PDF file in PSPDFKit Server and will fetch it from the URL when necessary. That being said, any annotations existing in the document upon upload, as well as ones created after upload will be stored in your database the same way they are for documents uploaded directly to PSPDFKit Server.

Furthermore, since document operations or digitally signing modify the underlying PDF file, after using any of these operation the resulting PDF will be stored using your configured storage backend and no longer be fetched from the URL the document was originally uploaded from.