Abstract: Conversion of text-based images to vector graphics (VG) is disclosed. The text-based images may include images of equations, custom typefaces, or other types of text that may not be included in a font selection of an optical character recognition (OCR) device or an application stored on a viewing device. A textual image may be converted from a raster graphics (RG) image to a VG image, which may enable resizing and alignment of the VG image with body text. In some aspects, the server may determine a body size of a reference character in the VG image. The server may determine a baseline of the VG image that may be used to align the image with the body text.

Abstract: Electronic content may be formatted using tag format stacks that store format information up to a predetermined location in the electronic content. The electronic content may be formatted for display using data in the format tag stack and without parsing the entire electronic content. In some aspects, an encoder may receive content that includes a predetermined format and body text. The encoder may parse the content via a sequential process to identify active format tags at certain locations within the content. Next, the encoder may store the active format tags as a format tag stack in the content. In further aspects, a decoder may select a portion of the content for display. The format tag stack may be updated by parsing the portion of the content that is not included in the format tag stack. The content may be formatted based on instructions of the updated format tag stack.