Size of PDF file generated is high

[shashikulk]

First of all, thanks for adding insert_htmlbox() feature/function to pymupdf. It works very well for non-English script. However, I have one observation regarding file size.

I am using insert_htmlbox() to insert some text (English as well as Devanagari) to my file. The size of the file created seems very high for the amount of text content I am writing to it. Below is the code I am using as an example in which I am writing only 1 line of Devanagari text to it, and the size of the pdf file generated is 242 KB.

import fitz_new as fitz
import os
out_path = str(os.getcwd()) + '/output/'
pdffilename = out_path + 'sample.pdf'

doc = fitz.open()
page = doc.new_page()
text = "PDF तयार करण्याचा हा माझा पहिला दस्तऐवज प्रकल्प आहे"
rect = fitz.Rect(30, 30, 480, 55)
page.insert_htmlbox(rect, text)
doc.save(pdffilename)
doc.close()

If I add more lines of text using insert_htmlbox(), the file size increases proportionately. Is there any way to keep the pdf file size to low?

I am using latest pymupdf with Python 3.10.x and Win11.

regards,
Shashikant

[JorjMcKie]

The method dynamically pulls in all required fonts. These may be several. Asian fonts typically are large, but the number of glyphs that you actually use in your text is small.
Therefore you should make sure to

• build font subsets which only contain the glyphs that are actually in use
• save the file with all available compression options

Please try the following code version:

import fitz_new as fitz
import os
out_path = str(os.getcwd()) + '/output/'
pdffilename = out_path + 'sample.pdf'

doc = fitz.open()
page = doc.new_page()
text = "PDF तयार करण्याचा हा माझा पहिला दस्तऐवज प्रकल्प आहे"
rect = fitz.Rect(30, 30, 480, 55)
page.insert_htmlbox(rect, text)
doc.subset_fonts()
doc.ez_save(pdffilename)
doc.close()

[JorjMcKie]

Going to move this to the "Discussions" tab.