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https://github.com/jsvine/pdfplumber.git
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David Huggins-Daines
29 lines
838 B
Python
29 lines
838 B
Python
#!/usr/bin/env python
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"""Create an xref section for a simple handmade PDF.
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Not a general purpose tool!!!"""
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import re
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import sys
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with open(sys.argv[1], "r+b") as infh:
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pos = 0
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xref = [(0, 65535, "f")]
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for spam in infh:
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text = spam.decode("ascii")
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if re.match(r"\s*(\d+)\s+(\d+)\s+obj", text):
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xref.append((pos, 0, "n"))
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elif text.strip() == "xref":
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startxref = pos
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pos = infh.tell()
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infh.seek(startxref)
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infh.write(b"xref\n")
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infh.write(("0 %d\n" % len(xref)).encode("ascii"))
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for x in xref:
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infh.write(("%010d %05d %s \n" % x).encode("ascii"))
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infh.write(("trailer << /Size %d /Root 1 0 R >>\n" % len(xref)).encode("ascii"))
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infh.write(b"startxref\n")
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infh.write(("%d\n" % startxref).encode("ascii"))
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infh.write(b"%%EOF\n")
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