Sponsored EC2 PDF is technically invalid (attached files have Subtype in EF)

[petervwyatt]

As reported by @hhrutter:

Trailer (as XRefStream)->Root (as Catalog)->Pages (as PageTreeNodeRoot)->Kids (as ArrayOfPageTreeNodeKids)[1019 (as PageObject)]->Annots (as ArrayOfAnnots)[1 (as AnnotFileAttachment)]->FS (as FileSpecification)->EF (as FileSpecEF) (container obj 14388 0)
Info: unknown key 'Subtype' is not defined in Arlington for FileSpecEF in PDF 1.7

Trailer (as XRefStream)->Root (as Catalog)->Pages (as PageTreeNodeRoot)->Kids (as ArrayOfPageTreeNodeKids)[1019 (as PageObject)]->Annots (as ArrayOfAnnots)[4 (as AnnotFileAttachment)]->FS (as FileSpecification)->EF (as FileSpecEF) (container obj 14391 0)
Info: unknown key 'Subtype' is not defined in Arlington for FileSpecEF in PDF 1.7

/Subtype entry is incorrectly in the /EF dictionary (as well as in the /F and /UF subdictionaries which is where it should be). x 2

[petervwyatt]

Resolved in EC3