tj Archives - Java PDF Blog

Understanding the PDF file Format – ActualText

Text is defined in the PDF file format as a display value (normally what you see onscreen) and an extraction value. It is useful to have 2 options because some characters are displayed differently to what you extract (for example fl is one glyf onscreen but two in extracted text). But did you know you…

April 12, 2012

TextNo commentsMark Stephens

Understanding the PDF file Format – Space is a special character

The PDF text stream contains the instructions to draw the actual contents of the PDF. One of these instructions is the Tj command, which takes a text string. So (Hello)Tj will write the word Hello onto the PDF page at the current co-ordinate location. Things get more interesting if you were to use (Hello World)Tj…

September 6, 2011

AdobeNo commentsMark Stephens

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Understanding the PDF file Format – ActualText

Understanding the PDF file Format – Space is a special character

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