1. A computer system for processing content in a digital image into reflow blocks of content, the computer system comprising: a processor; and a memory; wherein the computer system is configured to: obtain a digital image, the digital image including both reflow-capable and non-reflow-capable content; identify any non-reflow blocks of content in the digital image, wherein identifying any non-reflow blocks of content comprises identifying one or more bounds in the digital image of said non-reflow blocks of content, wherein identifying the one or more bounds in the digital image of each non-reflow block of content comprises determining dimensions and a location of the non-reflow block of content in the digital image; mark said non-reflow blocks of content with marking information, wherein said marking information comprises the identified one or more bounds in the digital image of said non-reflow blocks of content, wherein the identified one or more bounds in the digital image of each non-reflow block of content indicate the dimensions and location of the non-reflow block of content in the digital image; and process the reflow-capable content of the digital image into reflow content, excluding any content marked as a non-reflow block of content.