diff --git a/seminar/admin.py b/seminar/admin.py
index eeb415ac..f7f63434 100644
--- a/seminar/admin.py
+++ b/seminar/admin.py
@@ -195,7 +195,7 @@ admin.site.register(Skola, SkolaAdmin)
 
 class CisloAdmin(reversion.VersionAdmin):
     fieldsets = [
-        (None,              {'fields': ['cislo', 'rocnik', 'verejne_db', 'verejna_vysledkovka', 'poznamka']}),
+        (None,              {'fields': ['cislo', 'rocnik', 'verejne_db', 'verejna_vysledkovka', 'poznamka', 'pdf']}),
         (u'Data',           {'fields': ['datum_vydani', 'datum_deadline']}),
         ]
     list_display = ['kod', 'rocnik', 'cislo', 'datum_vydani', 'datum_deadline', 'verejne', 'verejna_vysledkovka']
diff --git a/seminar/migrations/0031_cislo_pdf.py b/seminar/migrations/0031_cislo_pdf.py
new file mode 100644
index 00000000..c51570bf
--- /dev/null
+++ b/seminar/migrations/0031_cislo_pdf.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+import seminar.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('seminar', '0030_add_vysledky'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='cislo',
+            name='pdf',
+            field=models.FileField(help_text='Pdf \u010d\xedsla, kter\xe9 si mohou \u0159e\u0161itel\xe9 st\xe1hnout', upload_to=seminar.models.cislo_pdf_filename, null=True, verbose_name='pdf'),
+            preserve_default=True,
+        ),
+    ]
diff --git a/seminar/models.py b/seminar/models.py
index c5a80b27..3e9f19cd 100644
--- a/seminar/models.py
+++ b/seminar/models.py
@@ -305,6 +305,9 @@ class Rocnik(SeminarModelBase):
         return c
         
 
+def cislo_pdf_filename(self, filename):
+    rocnik = str(self.rocnik.rocnik)
+    return os.path.join('cislo', 'pdf', rocnik, '{}-{}.pdf'.format(rocnik, self.cislo))
 
 @reversion.register(ignore_duplicate_revisions=True)
 @python_2_unicode_compatible
@@ -338,6 +341,9 @@ class Cislo(SeminarModelBase):
     poznamka = models.TextField(u'neveřejná poznámka', blank=True,
         help_text=u'Neveřejná poznámka k číslu (plain text)')
 
+    pdf = models.FileField(u'pdf', upload_to=cislo_pdf_filename, null=True,
+        help_text=u'Pdf čísla, které si mohou řešitelé stáhnout')
+
     def kod(self):
         return u'%s.%s' % (self.rocnik.rocnik, self.cislo)
     kod.short_description = u'Kód čísla'
@@ -370,6 +376,7 @@ class Cislo(SeminarModelBase):
             return None
         return cs[i]
 
+
 @reversion.register(ignore_duplicate_revisions=True)
 @python_2_unicode_compatible
 class Problem(SeminarModelBase):