def get_png_image_frompng( input_png_file, newWidth = None, verify = True ):
assert( os.path.basename( input_png_file ).endswith( '.png' ) )
assert( os.path.isfile( input_png_file ) )
img = Image.open( input_png_file )
width, height = img.size
files = { 'file' : open( input_png_file, 'rb' ) }
apiKey = get_cloudconvert_api_key( )
params = { 'apikey' : apiKey,
'input' : 'upload',
'inputformat' : 'png',
'outputformat' : 'png',
}
if newWidth is not None:
assert( isinstance( newWidth, int ) )
assert( newWidth > 10 )
newHeight = int( height * 1.0 * newWidth / width )
params['converteroptions[resize]'] = '%dx%d' % ( newWidth, newHeight )
#
##
response = requests.post( "https://api.cloudconvert.com/convert", params = params,
files = files, verify = verify )
if response.status_code != 200:
raise ValueError("Error, could not upload and convert SVG file %s." % input_svg_file )
img = Image.open( StringIO( response.content ) )
return img
def get_png_image_frompdf( input_pdf_file, newWidth = None, verify = True ):
assert( os.path.basename( input_pdf_file ).endswith( '.pdf' ) )
assert( os.path.isfile( input_pdf_file ) )
ipdf = PdfFileReader( open( input_pdf_file, 'rb' ) )
assert( ipdf.getNumPages() == 1 )
mbox = ipdf.getPage( 0 ).mediaBox
files = { 'file' : open( input_pdf_file, 'rb' ) }
width = int( mbox.getWidth( ) )
height = int( mbox.getHeight( ) )
apiKey = get_cloudconvert_api_key( )
params = { 'apikey' : apiKey,
'input' : 'upload',
'inputformat' : 'pdf',
'outputformat' : 'png',
}
if newWidth is not None:
assert( isinstance( newWidth, int ) )
assert( newWidth > 10 )
newHeight = int( height * 1.0 * newWidth / width )
params['converteroptions[resize]'] = '%dx%d' % ( newWidth, newHeight )
#
##
response = requests.post( "https://api.cloudconvert.com/convert", params = params,
files = files, verify = verify )
if response.status_code != 200:
raise ValueError("Error, could not upload and convert PDF file %s." % input_pdf_file )
img = Image.open( StringIO( response.content ) )
return img
def get_png_image( input_svg_file, newWidth = None, verify = True ):
assert( os.path.basename( input_svg_file ).endswith( '.svg' ) or
os.path.basename( input_svg_file ).endswith( '.svgz') )
assert( os.path.isfile( input_svg_file ) )
if os.path.basename( input_svg_file ).endswith( '.svgz' ):
r = QSvgRenderer( QByteArray( gzip.open( input_svg_file, 'rb' ).read( ) ) )
files = { 'file' : gzip.open( input_svg_file, 'rb' ) }
else:
r = QSvgRenderer( input_svg_file )
files = { 'file' : open( input_svg_file, 'rb' ) }
width = r.defaultSize().width()
height = r.defaultSize().height()
apiKey = get_cloudconvert_api_key( )
params = { 'apikey' : apiKey,
'input' : 'upload',
'inputformat' : 'svg',
'outputformat' : 'png',
}
if newWidth is not None:
assert( isinstance( newWidth, int ) )
assert( newWidth > 10 )
newHeight = int( height * 1.0 * newWidth / width )
params['converteroptions[resize]'] = '%dx%d' % ( newWidth, newHeight )
#
##
response = requests.post( "https://api.cloudconvert.com/convert", params = params,
files = files, verify = verify )
if response.status_code != 200:
raise ValueError("Error, could not upload and convert SVG file %s." % input_svg_file )
img = Image.open( StringIO( response.content ) )
return img
