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#ifndef MUPDF_PDF_IMP_H
#define MUPDF_PDF_IMP_H
#include "mupdf/pdf.h"
/* Private object functions. */
void pdf_dict_put_val_null(fz_context *ctx, pdf_obj *obj, int idx);
void pdf_forget_xref(fz_context *ctx, pdf_document *doc);
/* Private OCG functions. */
void pdf_read_ocg(fz_context *ctx, pdf_document *doc);
void pdf_drop_ocg(fz_context *ctx, pdf_document *doc);
int pdf_is_hidden_ocg(fz_context *ctx, pdf_ocg_descriptor *desc, pdf_obj *rdb, const char *usage, pdf_obj *ocg);
void pdf_drop_portfolio(fz_context *ctx, pdf_document *doc);
#endif
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