Choose a named family when the input is already text
Linotype’s OCR B account distinguishes OCR-A’s machine-reading origins from Adrian Frutiger’s 1968 OCR-B, which also considered human reading. Those histories explain related goals rather than making the two interchangeable resources.
For the Microsoft-documented A edition, use OCR A Extended. Its source describes an extension to the Windows ANSI character set. For the separate B history and digital editions, use the OCR-B guide. Keep the edition and resource name with the document rather than recording only OCR.
Separate a display-font choice from a scanning requirement
For a fictional technology poster, compare the actual title and a numeric reference at the final size. Inspect O and zero, I and one, punctuation and repeated characters before adding visual effects. The independent Roboto Mono and VT323 specimens below support that visual exercise; they are not approved substitutes for an OCR production requirement.
If a receiving system specifies a font, character set, printing method or output size, follow those requirements for the exact deliverable. A family name or a successful browser preview alone cannot establish that a scanner will accept the final document. Keep that operational decision separate from choosing a technical-looking heading.
Use image-to-text software when the input is a scan
A font draws characters that are already text. Applying an OCR-named typeface to a heading does not recognize words in a photograph, convert a scanned page or repair the recognized wording. If the starting point is an image, the required route is OCR software followed by review of its text output.
If the task is instead to identify a typeface seen in an image, use the font-identification guide. Recognition of the wording and identification of the typeface are different questions. Save the original image alongside any extracted text so names, numbers and punctuation can be compared before reuse.
Keep edition metadata attached to the actual source
Microsoft’s OCRB record lists Ocrb.ttf and Fixed pitch: False; Linotype’s OCR B description calls its listed resource monospaced. These statements belong to their respective editions. Do not use a brief family label to erase the difference.
Follow the selected original resource for the file and its terms. This page provides a decision guide and independent previews rather than the named proprietary files. The font-file guide explains what an editable font resource carries compared with an image of lettering.
Your questions, answered.
Does installing an OCR font convert a photo into text?
No. A font renders existing text. Reading words from an image requires OCR software; identifying the typeface in that image is another task.
Should I choose OCR-A or OCR-B for a required scanning workflow?
Use the exact family, edition and output requirements specified by that workflow. A visually similar font or decorative preview does not establish compatibility.
Sources & background
Sources supporting this page’s explanations. Practical examples are our editorial suggestions.