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Add placeholder password callback to support reading of encrypted PDF files in the future.

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Michael R Sweet
2021-09-27 08:37:14 -04:00
parent ba9d03ecac
commit 43239eaf8a
5 changed files with 78 additions and 32 deletions
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4
pdfio.h
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@@ -76,6 +76,8 @@ typedef enum pdfio_filter_e // Compression/decompression filters for streams
typedef struct _pdfio_obj_s pdfio_obj_t;// Numbered object in PDF file
typedef ssize_t (*pdfio_output_cb_t)(void *ctx, const void *data, size_t datalen);
// Output callback for pdfioFileCreateOutput
typedef const char *(*pdfio_password_cb_t)(void *data, const char *filename);
// Password callback for pdfioFileOpen
typedef struct pdfio_rect_s // PDF rectangle
{
double x1; // Lower-left X coordinate
@@ -176,7 +178,7 @@ extern const char *pdfioFileGetProducer(pdfio_file_t *pdf) _PDFIO_PUBLIC;
extern const char *pdfioFileGetSubject(pdfio_file_t *pdf) _PDFIO_PUBLIC;
extern const char *pdfioFileGetTitle(pdfio_file_t *pdf) _PDFIO_PUBLIC;
extern const char *pdfioFileGetVersion(pdfio_file_t *pdf) _PDFIO_PUBLIC;
extern pdfio_file_t *pdfioFileOpen(const char *filename, pdfio_error_cb_t error_cb, void *error_data) _PDFIO_PUBLIC;
extern pdfio_file_t *pdfioFileOpen(const char *filename, pdfio_password_cb_t password_cb, void *password_data, pdfio_error_cb_t error_cb, void *error_data) _PDFIO_PUBLIC;
extern void pdfioFileSetAuthor(pdfio_file_t *pdf, const char *value) _PDFIO_PUBLIC;
extern void pdfioFileSetCreationDate(pdfio_file_t *pdf, time_t value) _PDFIO_PUBLIC;
extern void pdfioFileSetCreator(pdfio_file_t *pdf, const char *value) _PDFIO_PUBLIC;