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Support xref streams with encrypted output.

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Michael R Sweet 2025-02-16 12:35:45 -05:00
parent aeee24b856
commit 3fad0d6f15
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GPG Key ID: BE67C75EC81F3244
1 changed files with 8 additions and 2 deletions
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10
pdfio-file.c
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@ -2364,8 +2364,7 @@ write_trailer(pdfio_file_t *pdf) // I - PDF file
// Write the xref table... // Write the xref table...
xref_offset = _pdfioFileTell(pdf); xref_offset = _pdfioFileTell(pdf);
// TODO: Figure out how to do xref streams with encrypted output if (strcmp(pdf->version, "1.5") >= 0 && !pdf->output_cb)
if (strcmp(pdf->version, "1.5") >= 0 && !pdf->output_cb && !pdf->encrypt_obj)
{ {
// Write a cross-reference stream... // Write a cross-reference stream...
pdfio_dict_t *xref_dict; // Object dictionary pdfio_dict_t *xref_dict; // Object dictionary
@ -2374,6 +2373,11 @@ write_trailer(pdfio_file_t *pdf) // I - PDF file
pdfio_stream_t *xref_st; // Stream pdfio_stream_t *xref_st; // Stream
int offsize; // Size of object offsets int offsize; // Size of object offsets
unsigned char buffer[10]; // Buffer entry unsigned char buffer[10]; // Buffer entry
pdfio_encryption_t encryption; // PDF encryption mode
// Disable encryption while we write the xref stream...
encryption = pdf->encryption;
pdf->encryption = PDFIO_ENCRYPTION_NONE;
// Figure out how many bytes are needed for the object numbers // Figure out how many bytes are needed for the object numbers
if (xref_offset < 0xff) if (xref_offset < 0xff)
@ -2514,6 +2518,8 @@ write_trailer(pdfio_file_t *pdf) // I - PDF file
} }
pdfioStreamClose(xref_st); pdfioStreamClose(xref_st);
pdf->encryption = encryption;
} }
else else
{ {