These two files, pdf_linkchecker.py and pdf_fontchecker.py are code examples to go along with a blog article: http://reachtim.com/articles/PDF-Testing.html
See the article for details on how to test your PDFs for broken internal and external links and for unembedded fonts.
| ''' | |
| Gist to accompany blog artice: | |
| http://reachtim.com/articles/PDF-Testing.html | |
| ''' | |
| from PyPDF2 import PdfFileReader | |
| from pprint import pprint | |
| import sys | |
| fontkeys = set(['/FontFile', '/FontFile2', '/FontFile3']) | |
| def walk(obj, fnt, emb): | |
| if '/BaseFont' in obj: | |
| fnt.add(obj['/BaseFont']) | |
| elif '/FontName' in obj and fontkeys.intersection(set(obj)): | |
| emb.add(obj['/FontName']) | |
| for k in obj: | |
| if hasattr(obj[k], 'keys'): | |
| walk(obj[k], fnt, emb) | |
| return fnt, emb | |
| if __name__ == '__main__': | |
| fname = sys.argv[1] | |
| pdf = PdfFileReader(fname) | |
| fonts = set() | |
| embedded = set() | |
| for page in pdf.pages: | |
| obj = page.getObject() | |
| f, e = walk(obj['/Resources'], fonts, embedded) | |
| fonts = fonts.union(f) | |
| embedded = embedded.union(e) | |
| unembedded = fonts - embedded | |
| print 'Font List' | |
| pprint(sorted(list(fonts))) | |
| if unembedded: | |
| print '\nUnembedded Fonts' | |
| pprint(unembedded) |
| ''' | |
| Gist to accompany blog artice: | |
| http://reachtim.com/PDF-Testing.html | |
| ''' | |
| from PyPDF2 import PdfFileReader | |
| import requests | |
| import sys | |
| import urllib | |
| def check_ftp(url): | |
| try: | |
| response = urllib.urlopen(url) | |
| except IOError as e: | |
| result, reason = False, e | |
| else: | |
| if response.read(): | |
| result, reason = True, 'okay' | |
| else: | |
| result, reason = False, 'Empty Page' | |
| return result, reason | |
| def check_url(url, auth=None): | |
| headers = {'User-Agent': 'Mozilla/5.0', 'Accept': '*/*'} | |
| if url.startswith('ftp://'): | |
| result, reason = check_ftp(url) | |
| else: | |
| try: | |
| response = requests.get(url, timeout=6, auth=auth, headers=headers) | |
| except (requests.ConnectionError, | |
| requests.HTTPError, | |
| requests.Timeout) as e: | |
| result, reason = False, e | |
| else: | |
| if response.text: | |
| result, reason = response.status_code, response.reason | |
| else: | |
| result, reason = False, 'Empty Page' | |
| return result, reason | |
| def check_pdf(pdf): | |
| links = list() | |
| urls = list() | |
| badurls = list() | |
| for page in pdf.pages: | |
| obj = page.getObject() | |
| for annot in [x.getObject() for x in obj.get('/Annots', [])]: | |
| dst = annot['/A'].get('/D') | |
| url = annot['/A'].get('/URI') | |
| if dst: | |
| links.append(dst) | |
| elif url: | |
| urls.append(url) | |
| result, reason = check_url(url) | |
| if not result: | |
| badurls.append({'url':url, 'reason': '%r' % reason}) | |
| anchors = pdf.namedDestinations.keys() | |
| badlinks = [x for x in links if x not in anchors] | |
| return links, badlinks, urls, badurls | |
| if __name__ == '__main__': | |
| fname = sys.argv[1] | |
| print 'Checking %s' % fname | |
| pdf = PdfFileReader(fname) | |
| links, badlinks, urls, badurls = check_pdf(pdf) | |
| print 'urls: ', urls | |
| print 'bad links: ', badlinks | |
| print 'bad urls: ',badurls | |