Adding text to PDF file

[mohitrobo]

I'm trying to add text to an empty PDF file within a textbox using .insert_textbox(). The width of the box(rectangle) is 495 (x_0=50, x_1=545). The point from which the text is added is (x_0,y_0)=(50,50). Here's the code:

While for height=5, the text gets pasted onto the page, but for height<5, no text is pasted. How do I find the height of the textbox?

[JorjMcKie]

First you must find an approximate minimum number of lines that will be used for a given box width. Width being 495 we have math.ceil(text_length / 495) is 3.
Then multiply this with the "natural" line height of your font, and again use math.ceil for the result. The natural line height of a font is font.ascender - font.descender. For Times-Roman this is ca. 1.334, so we have

text_length = fitz.get_text_length(text,fontname="tiro")*10
math.ceil(math.ceil(text_length/width)*lineheight)
5

You can also overwrite the font lineheight and e.g. take 1.2.

I called the above "approximate" because the algorithm will start a new line whenever a word will not completely fit in the current line. The quotient textlength/width ignores this and will tend to compute a value smaller than the final number of lines.

[mohitrobo]

Thank you @JorjMcKie