How to use PyMuPDF to generate vertical text？

[kingqiuol]

No description provided.

[JorjMcKie]

The simplest way: page.insertTextbox(). Specify desired rectangle and angle 0, 90, 180, 270. Text will then be written either:

• top-left to bottom-right, or
• top-right to bottom-left, or
• bottom-right to top-left, or
• bottom-left to top-right

The are also lots of other ways, including writing in arbitrary angles (other than int multiples of 90 degrees).

[JorjMcKie]

Any feedback on this?

[cges30901]

I think he/she is probably referring to vertical writing in CJK languages. rotate is not useful here.

Here is my example script, modified from this example and #329

import fitz
doc = fitz.open()  # new or existing PDF
page = doc.newPage()  # new or existing page via doc[n]
r1 = fitz.Rect(100,100,200,200)
text = "你好！hello！Hallo！ 我很喜欢德国！德国是个好地方"
page.insertTextbox(r1, text, fontname="china-s", rotate=270)

doc.save("text.pdf")

If rotate is used, characters are also rotated, which is not desired.

[JorjMcKie]

@cges30901 - thanks for your comment! You are probably very right.
But @kingqiuol did not even honor us with more than just the title - so we are left with guessing ...

[JorjMcKie]

So if your assumption applies, the simplest, temporary solution would be to insert linebreaks after each character, wouldn't it?

[JorjMcKie]

I am about to finish the next PyMuPDF version. You can do something like this with it:

import fitz

font = fitz.Font("china-s")
doc = fitz.open()
page = doc.newPage()
tw = fitz.TextWriter(page.rect)
text = "直至在專輯製作過程中方被重新發現。"
pos = fitz.Point(250, 70)
fsize = 11

tw.appendv(pos, text, font=font, fontsize=fsize)
tw.writeText(page)

doc.save("some.pdf")

Produces this on the PDF page:

@cges30901 - do you believe this is the required functionality?

[kingqiuol]

@JorjMcKie @cges30901 Thank you for your answer. I use CJK languages and have solved this problem according to @cges30901。

[kingqiuol]

@JorjMcKie ，I used your answer, but something went wrong，expect the next PyMuPDF version.

[JorjMcKie]

The new version 1.17.7 is underway to be uploaded. Look at PyPI in about half an hour.

[asnahu]

I am about to finish the next PyMuPDF version. You can do something like this with it:

import fitz

font = fitz.Font("china-s")
doc = fitz.open()
page = doc.newPage()
tw = fitz.TextWriter(page.rect)
text = "直至在專輯製作過程中方被重新發現。"
pos = fitz.Point(250, 70)
fsize = 11

tw.appendv(pos, text, font=font, fontsize=fsize)
tw.writeText(page)

doc.save("some.pdf")

Produces this on the PDF page:

@cges30901 - do you believe this is the required functionality?

Is this possible translate/rotate an oriented vertical text PDF to horizontal?