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Implement pdfioFileSetPermissions.

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This commit is contained in:
Michael R Sweet
2021-10-10 22:27:09 -04:00
parent 37e80d67b1
commit 61a7964d90
5 changed files with 249 additions and 12 deletions
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24
pdfio.h
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@@ -59,6 +59,14 @@ typedef struct _pdfio_file_s pdfio_file_t;
// PDF file
typedef bool (*pdfio_error_cb_t)(pdfio_file_t *pdf, const char *message, void *data);
// Error callback
typedef enum pdfio_encryption_e // PDF encryption modes
{
PDFIO_ENCRYPTION_NONE = 0, // No encryption
PDFIO_ENCRYPTION_RC4_40, // 40-bit RC4 encryption (PDF 1.3)
PDFIO_ENCRYPTION_RC4_128, // 128-bit RC4 encryption (PDF 1.4)
PDFIO_ENCRYPTION_AES_128, // 128-bit AES encryption (PDF 1.6)
PDFIO_ENCRYPTION_AES_256 // 256-bit AES encryption (PDF 2.0)
} pdfio_encryption_t;
typedef enum pdfio_filter_e // Compression/decompression filters for streams
{
PDFIO_FILTER_NONE, // No filter
@@ -78,6 +86,20 @@ 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
enum pdfio_permission_e // PDF permission bits
{
PDFIO_PERMISSION_NONE = 0, // No permissions
PDFIO_PERMISSION_PRINT = 0x0004, // PDF allows printing
PDFIO_PERMISSION_MODIFY = 0x0008, // PDF allows modification
PDFIO_PERMISSION_COPY = 0x0010, // PDF allows copying
PDFIO_PERMISSION_ANNOTATE = 0x0020, // PDF allows annotation
PDFIO_PERMISSION_FORMS = 0x0100, // PDF allows filling in forms
PDFIO_PERMISSION_READING = 0x0200, // PDF allows screen reading/accessibility (deprecated in PDF 2.0)
PDFIO_PERMISSION_ASSEMBLE = 0x0400, // PDF allows assembly (insert, delete, or rotate pages, add document outlines and thumbnails)
PDFIO_PERMISSION_PRINT_HIGH = 0x0800, // PDF allows high quality printing
PDFIO_PERMISSION_ALL = ~0 // All permissions
};
typedef unsigned pdfio_permission_t; // PDF permission bitfield
typedef struct pdfio_rect_s // PDF rectangle
{
double x1; // Lower-left X coordinate
@@ -174,6 +196,7 @@ extern size_t pdfioFileGetNumObjs(pdfio_file_t *pdf) _PDFIO_PUBLIC;
extern size_t pdfioFileGetNumPages(pdfio_file_t *pdf) _PDFIO_PUBLIC;
extern pdfio_obj_t *pdfioFileGetObj(pdfio_file_t *pdf, size_t n) _PDFIO_PUBLIC;
extern pdfio_obj_t *pdfioFileGetPage(pdfio_file_t *pdf, size_t n) _PDFIO_PUBLIC;
extern pdfio_permission_t pdfioFileGetPermissions(pdfio_file_t *pdf) _PDFIO_PUBLIC;
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;
@@ -183,6 +206,7 @@ extern void pdfioFileSetAuthor(pdfio_file_t *pdf, const char *value) _PDFIO_PUB
extern void pdfioFileSetCreationDate(pdfio_file_t *pdf, time_t value) _PDFIO_PUBLIC;
extern void pdfioFileSetCreator(pdfio_file_t *pdf, const char *value) _PDFIO_PUBLIC;
extern void pdfioFileSetKeywords(pdfio_file_t *pdf, const char *value) _PDFIO_PUBLIC;
extern bool pdfioFileSetPermissions(pdfio_file_t *pdf, pdfio_permission_t permissions, pdfio_encryption_t encryption, const char *owner_password, const char *user_password) _PDFIO_PUBLIC;
extern void pdfioFileSetSubject(pdfio_file_t *pdf, const char *value) _PDFIO_PUBLIC;
extern void pdfioFileSetTitle(pdfio_file_t *pdf, const char *value) _PDFIO_PUBLIC;