SVG to PDF text missing

flyme2bluemoon commented 3 years ago

Trying to convert svg file to pdf file. Although it converts images properly, the text is missing in the pdf. Using Python 3.8.2 on macOS Catalina 10.15.6. Installed svglib using pip3.

flyme2bluemoon commented 3 years ago

Also, converting svgz file to pdf raises the following error:

Rendering failed.
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.8/bin/svg2pdf", line 129, in <module>
    _main()
  File "/Library/Frameworks/Python.framework/Versions/3.8/bin/svg2pdf", line 125, in _main
    svg2pdf(path, outputPat=args.output)
  File "/Library/Frameworks/Python.framework/Versions/3.8/bin/svg2pdf", line 38, in svg2pdf
    drawing = svglib.svg2rlg(path)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/svglib/svglib.py", line 1442, in svg2rlg
    shutil.copyfileobj(f_in, f_out)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/shutil.py", line 202, in copyfileobj
    buf = fsrc_read(length)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/gzip.py", line 292, in read
    return self._buffer.read(size)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/_compression.py", line 68, in readinto
    data = self.read(len(byte_view))
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/gzip.py", line 479, in read
    if not self._read_gzip_header():
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/gzip.py", line 427, in _read_gzip_header
    raise BadGzipFile('Not a gzipped file (%r)' % magic)
gzip.BadGzipFile: Not a gzipped file (b'<s')

claudep commented 3 years ago

Hi Matthew, having access to the source files is mandatory to debug your issues.

flyme2bluemoon commented 3 years ago

page_50.svgz.zip

Hey Claude,

I wasn't able to upload the svg directly but here is a ZIP file containing the SVG file.

Thanks for looking into it!

claudep commented 3 years ago

With the suggested pull request, the text now appears.

However your next issue might be embedded fonts. Are the embedded woff fonts PostScript otf or TrueType ttf? Reportlab currently doesn't support PostScript fonts, so there is nothing we can do in that case.

About the svgz issue, the problem is that your file is not compressed, so this is a svg file not a svgz one.

flyme2bluemoon commented 3 years ago

Hey Claude, thanks so much for all the help! So, how can I update it using pip3? Also, can I just take the svgz file and rename it with the svg file extention? Thanks again!

claudep commented 3 years ago

As soon as the patch is committed (when the tests finish), you should be able to pip-install it (see https://adamj.eu/tech/2019/03/11/pip-install-from-a-git-repository/).

Yes, you can simply rename the svgz extension to svg.

claudep commented 3 years ago

My stance about font support is not totally right, as there are tools (like https://github.com/fonttools/fonttools) that allow for font format conversion. However this is a rather big task, not planned in the short term.

flyme2bluemoon commented 3 years ago

I'm not sure what fonts are used in the SVG since I didn't create them.

deeplook / svglib

SVG to PDF text missing #253