Abstract: A system and method to concurrently preview or publish a digital edition. The system comprises a compilation database and an assembler system. The assembler system includes: a receiving module to receive page edition data; a verification module to identify pages edited or created since a last successful compilation; a parser to determine whether the pages edited or created since the last successful compilation are error-free or error-generating pages and to generate replacement parsed page data or parsed page data accordingly; and a compiler. The compiler is configured to: compile the parsed page data and generate compiled page data for each of the pages edited or created since the last successful compilation; combine the compiled page data of the pages edited or created since the last successful compilation with compiled page data stored in the compilation database for unmodified pages; and generate compiled edition data.