No, Currently only a script generated using edb_ddl_extractor.sql is recommended as a source for assessment in EDB Postgres Migration Portal. The utility uses Oracle dbms_metadata.get_ddl to extract definitions of oracle different database objects types. The extracted file can either be uploaded to EDB Postgres Migration Portal or you can paste the script in the text area for assessment. For more information see, Quick Start Guide (link)
Getting Started => Quick Start Guide.
Note: We recommend to execute edb_ddl_extractor in Oracle SQL PLUS.