In [1]:

    

import PyPDF2


    

In [2]:

    

src_pdf = PyPDF2.PdfFileReader('data/src/pdf/sample1.pdf')
dst_pdf = PyPDF2.PdfFileWriter()


    

In [3]:

    

dst_pdf.cloneReaderDocumentRoot(src_pdf)


    

In [4]:

    

with open('data/temp/sample1_no_meta.pdf', 'wb') as f:
    dst_pdf.write(f)


    

In [5]:

    

print(PyPDF2.PdfFileReader('data/temp/sample1_no_meta.pdf').documentInfo)


    

    




{'/Producer': 'PyPDF2'}

In [6]:

    

dst_pdf.addMetadata({'/Producer': ''})


    

In [7]:

    

with open('data/temp/sample1_no_meta.pdf', 'wb') as f:
    dst_pdf.write(f)

print(PyPDF2.PdfFileReader('data/temp/sample1_no_meta.pdf').documentInfo)


    

    




{'/Producer': ''}

In [8]:

    

def remove_all_metadata(src_path, dst_path, producer=''):
    src_pdf = PyPDF2.PdfFileReader(src_path)
    dst_pdf = PyPDF2.PdfFileWriter()
    dst_pdf.cloneReaderDocumentRoot(src_pdf)
    dst_pdf.addMetadata({'/Producer': producer})
    with open(dst_path, 'wb') as f:
        dst_pdf.write(f)


    

In [9]:

    

remove_all_metadata('data/src/pdf/sample1.pdf', 'data/temp/sample1_no_meta.pdf')
print(PyPDF2.PdfFileReader('data/temp/sample1_no_meta.pdf').documentInfo)


    

    




{'/Producer': ''}

In [10]:

    

src_pdf = PyPDF2.PdfFileReader('data/src/pdf/sample1.pdf')
dst_pdf = PyPDF2.PdfFileWriter()


    

In [11]:

    

d = {key: src_pdf.documentInfo[key] for key in src_pdf.documentInfo.keys()}


    

In [12]:

    

print(d)


    

    




{'/Title': 'sample1', '/Producer': 'macOS バージョン10.14.2（ビルド18C54） Quartz PDFContext', '/Creator': 'Keynote', '/CreationDate': "D:20190114072947Z00'00'", '/ModDate': "D:20190114072947Z00'00'"}

In [13]:

    

d.pop('/Creator')
d.pop('/Producer')

print(d)


    

    




{'/Title': 'sample1', '/CreationDate': "D:20190114072947Z00'00'", '/ModDate': "D:20190114072947Z00'00'"}

In [14]:

    

dst_pdf.addMetadata(d)


    

In [15]:

    

with open('data/temp/sample1_remove_meta.pdf', 'wb') as f:
    dst_pdf.write(f)


    

In [16]:

    

print(PyPDF2.PdfFileReader('data/temp/sample1_remove_meta.pdf').documentInfo)


    

    




{'/Producer': 'PyPDF2', '/Title': 'sample1', '/CreationDate': "D:20190114072947Z00'00'", '/ModDate': "D:20190114072947Z00'00'"}

In [17]:

    

def remove_metadata(src_path, dst_path, *args, producer=''):
    src_pdf = PyPDF2.PdfFileReader(src_path)
    dst_pdf = PyPDF2.PdfFileWriter()
    dst_pdf.cloneReaderDocumentRoot(src_pdf)
    
    d = {key: src_pdf.documentInfo[key] for key in src_pdf.documentInfo.keys()
         if key not in args}
    
    d.setdefault('/Producer', producer)
    
    dst_pdf.addMetadata(d)
    with open(dst_path, 'wb') as f:
        dst_pdf.write(f)


    

In [18]:

    

remove_metadata('data/src/pdf/sample1.pdf', 'data/temp/sample1_no_meta.pdf',
                '/Creator', '/ModDate', '/CreationDate')
print(PyPDF2.PdfFileReader('data/temp/sample1_no_meta.pdf').documentInfo)


    

    




{'/Producer': 'macOS バージョン10.14.2（ビルド18C54） Quartz PDFContext', '/Title': 'sample1'}

In [19]:

    

remove_metadata('data/src/pdf/sample1.pdf', 'data/temp/sample1_no_meta.pdf',
                '/Creator', '/ModDate', '/CreationDate', '/Producer')
print(PyPDF2.PdfFileReader('data/temp/sample1_no_meta.pdf').documentInfo)


    

    




{'/Producer': '', '/Title': 'sample1'}

In [20]:

    

remove_metadata('data/src/pdf/sample1.pdf', 'data/temp/sample1_no_meta.pdf',
                '/Creator', '/ModDate', '/CreationDate', '/Producer', producer='XXX')
print(PyPDF2.PdfFileReader('data/temp/sample1_no_meta.pdf').documentInfo)


    

    




{'/Producer': 'XXX', '/Title': 'sample1'}

In [21]:

    

def select_metadata(src_path, dst_path, *args, producer=''):
    src_pdf = PyPDF2.PdfFileReader(src_path)
    dst_pdf = PyPDF2.PdfFileWriter()
    dst_pdf.cloneReaderDocumentRoot(src_pdf)
    
    d = {key: src_pdf.documentInfo[key] for key in src_pdf.documentInfo.keys()
         if key in args}
    
    d.setdefault('/Producer', producer)
    
    dst_pdf.addMetadata(d)
    with open(dst_path, 'wb') as f:
        dst_pdf.write(f)


    

In [22]:

    

select_metadata('data/src/pdf/sample1.pdf', 'data/temp/sample1_no_meta.pdf',
                '/Title', '/ModDate')
print(PyPDF2.PdfFileReader('data/temp/sample1_no_meta.pdf').documentInfo)


    

    




{'/Producer': '', '/Title': 'sample1', '/ModDate': "D:20190114072947Z00'00'"}

In [23]:

    

select_metadata('data/src/pdf/sample1.pdf', 'data/temp/sample1_no_meta.pdf',
                '/Title', '/Producer')
print(PyPDF2.PdfFileReader('data/temp/sample1_no_meta.pdf').documentInfo)


    

    




{'/Producer': 'macOS バージョン10.14.2（ビルド18C54） Quartz PDFContext', '/Title': 'sample1'}