def convert_pdf(self, pdf_data):
"""Converts PDF to PNG images. Returns an array of PNG data."""
asset = conversion.Asset('application/pdf', pdf_data, 'sheet.pdf')
conversion_request = conversion.Conversion(asset, 'image/png')
result = conversion.convert(conversion_request)
if result.assets:
return [asset.data for asset in result.assets]
else:
raise Exception('Conversion failed: %d %s'
% (result.error_code, result.error_text))
def post(self):
logging.info('processing %s ' % (self.request.url))
content = self.request.get('src')
asset = conversion.Asset("text/html", content, "Content.html")
conversion_obj = conversion.Conversion(asset, "application/pdf")
result = conversion.convert(conversion_obj)
if result.assets:
for asset in result.assets:
self.response.headers['Content-Type'] = "application/pdf"
self.response.out.write(asset.data)
else:
self.response.out.write('Error Code : %s <br/>Error Text : %s' % (result.error_code, result.error_text))
def test_conversion():
from google.appengine.api import conversion
asset = conversion.Asset('text/html', u'<html><head><meta charset=\'utf-8\'></head><body>testtest<br/>てすと</body></head></html>'.encode('utf-8'), 'index.html')
conversion_obj = conversion.Conversion(asset, 'application/pdf')
# async
#rpc = conversion.create_rpc()
#conversion.make_convert_call(rpc, conversion_obj)
#result = rpc.get_result()
result = conversion.convert(conversion_obj)
if result.assets:
return result.assets[0].data
else:
raise
def convert_html(f, title, entries, output_type='application/pdf'):
try:
html = render('pdf.html', {'title': title, 'entries': entries})
asset = conversion.Asset('text/html', deunicode(html))
conversion_request = conversion.Conversion(asset, output_type)
result = conversion.convert(conversion_request)
if result and result.assets:
for i in result.assets:
f.write(i.data)
return None
else:
logging.error('Conversion error: %s', result.error_text)
return result.error_text
except Exception, e:
logging.error('Conversion exception: %s', e)
return str(e)
def convert_html(f, title, entries, output_type='application/pdf'):
try:
html = render('pdf.html', {'title': title, 'entries': entries})
asset = conversion.Asset('text/html', deunicode(html))
conversion_request = conversion.Conversion(asset, output_type)
result = conversion.convert(conversion_request)
if result and result.assets:
for i in result.assets:
f.write(i.data)
return None
else:
logging.error('Conversion error: %s', result.error_text)
return result.error_text
except Exception, e:
logging.error('Conversion exception: %s', e)
return str(e)
def convertPdf(data,
imageWidth=1000,
dstContentType='image/png',
fileName='dummyFileName',
pageNumber=None):
"""
Pass in the raw binary PDF data. Returns the raw binary image data
result after rasterization.
"""
asset = conversion.Asset("application/pdf", data, fileName)
requestKwargs = {'image_width': imageWidth}
if pageNumber is not None:
requestKwargs.update({'first_page': pageNumber, 'last_page': pageNumber})
conversionObj = conversion.Conversion(asset, dstContentType, **requestKwargs)
result = conversion.convert(conversionObj)
if result.assets:
return result.assets[0].data
else:
raise PdfConversionError('%s [code %s]' % (result.error_text, result.error_code))
def convert_html(f, title, entries, output_type='application/pdf'):
try:
html = render('pdf.html', {'title': title, 'entries': entries})
asset = conversion.Asset('text/html', deunicode(html))
conversion_request = conversion.ConversionRequest(asset, output_type)
for entry, content, blobs in entries:
for b in blobs:
if b.type == models.BLOB_TYPE_IMAGE:
data = blobstore.BlobReader(b.blob, buffer_size=1048576).read()
conversion_request.add_asset(conversion.Asset(b.blob.content_type, data, str(b.key())))
result = conversion.convert(conversion_request)
if result and result.assets:
for i in result.assets:
f.write(i.data)
return None
else:
logging.error('Conversion error: %s', result.error_text)
return result.error_text
except Exception, e:
logging.error('Conversion exception: %s', e)
return str(e)
