[PYTHON] Until you edit an SVG file with AutoCAD to PNG.

SVG > DXF I wanted to edit a small SVG file in AutoCAD and finally make it a PNG, but AutoCAD couldn't read the SVG directly.

I searched and found a lot of conversion sites, but neither DWG nor DXF could be opened in AutoCAD on the first site I tried.

When I regained my mind and converted it on the next site, I was able to open it brilliantly. Convert SVG to DXF Online Free-Convert SVG DXF

AutoCAD> PNG (No)

After editing with AutoCAD, I wanted to output as PNG, but the PNG image exported with the PNGOUT command as shown on the next page is not at a very practical level and is too rough to be used for thumbnails and icons. It was. PNGOUT[PNG export](command) | AutoCAD 2016 | Autodesk Knowledge Network

AutoCAD > PDF As for the print quality, I have no complaints about it, so it was perfect if I output it as printed matter instead of writing it to a file.

There were five preset PDF plotter preferences, but I didn't hesitate to choose the third ʻAutoCAD PDF (High Quality Print) .pc3`. (I haven't tried anything else.)

DWG to PDF.pc3

A generic driver used in AutoCAD 2015 and earlier.

AutoCAD PDF (General Documentation).pc3

A general-purpose driver suitable for most applications.

AutoCAD PDF (High Quality Print).pc3

Generates a PDF file optimized for printing on paper.

AutoCAD PDF (Smallest File).pc3

Generates a PDF with the smallest possible file size.

AutoCAD PDF (Web and Mobile).pc3

Generates a PDF file that supports hyperlinks on mobile devices and web browsers.

PDF > PNG I searched for this too and found a lot of sites, so I tried it on the top site and it worked. PDF PNG Converter-Online PDF to PNG

Make the background transparent.

I used Python's PIL to make the background transparent.

#This is the only import
from PIL import Image

#Open image
im = Image.open("hoge.png ")

#Convert to 8bit grayscale mode.
L = im.convert("L")

#Invert the black and white of the L channel,
A = L.point(lambda x: 255 if x < 128 else 0)

#Combine as alpha channel A.
im = Image.merge("LA",(L,A))

#Save the image.
im.save("hoge2.png ")                         

The above is a memo to edit the SVG file to PNG.

Only Python can convert SVG files to PNG, but I think that a certain environment is required after editing SVG.

This time, due to the SSD failure, the OS was rebuilt, so I had to work at the company or at hand, but thanks to the conversion site, it was very helpful.