How to insert(replace) text with 90° rotation

[kuaidianbiye1994]

Hello,
I want to make a train timetable translate programm for my master’s thesis, and PyMuPDF reaches most of my goal. But still I have some needs that I can't manage on my own..

For example, I have a german train timetable to be translated to a chinese train timetable:

For translating this into a chinese one, I have to rotate this timetable 90 degrees, like this:

Now I have a problem, the number on the x-axis(like 4,5 on the picture, which refers to time) ,they "lie" on the x-axis, but I want them to "stand" on x-axis. In other words, I want to rotate these numbers 90 degrees.
The same problem is, the text translated (like" Leipzig Hbf"), I managed to translate them into chinese but I also need a 90-degree-rotation.

I used
`
def set_font_de(doc, font_name, font_file):

doc[0].insert_text((0, 0), " ", fontname=font_name,fontfile=font_file, render_mode=3,rotate=90)  #to make space for new text

`

I also tried
`
for page in doc:

    spans = collect_span_de(page)
    for span in spans:
        text = translate_span_de(translator, span, to_lang)
        print(f'translated {span["text"]} to {text}...')
        replace_span(page, span, text, font_name)
        page.setRotation(90)    # I tried to rotate the page before/after I replace the text, but two ways have no difference

`
Unluckily, these methods don't work well : (

Thanks for any help in advance!
Deutsche Fahrplan 1.pdf

[kuaidianbiye1994]

I'm still looking for any possible help. Thanks for any help in advance!

[JorjMcKie]

Use page.insert_text() or page.insert_textbox(). Both support a rotate parameter.

Based on rotate, the textbox method will automatically determine the correct corner of the rectangle, where writing the text should begin. So with rotate=90 it will be the bottom-left corner and the lines will fill vertically from left to right.
Why don't you look at the documentation here.

As a general comment:
You cannot simply "replace" text on an existing PDF page. You must either use an empty page, or you must remove existing text first, e.g. by using redaction annotations.

If you use render mode 3, the new text will be invisible, BTW.