/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */ /* pdfdocument.h: Implementation of EvDocument for PDF * Copyright (C) 2004, Red Hat, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include #include "ev-poppler.h" #include "ev-ps-exporter.h" #include "ev-document-find.h" #include "ev-document-misc.h" #include "ev-document-links.h" #include "ev-document-security.h" #include "ev-document-thumbnails.h" typedef struct { PdfDocument *document; char *text; GList **pages; guint idle; int start_page; int search_page; } PdfDocumentSearch; struct _PdfDocumentClass { GObjectClass parent_class; }; struct _PdfDocument { GObject parent_instance; PopplerDocument *document; PopplerPSFile *ps_file; gchar *password; PdfDocumentSearch *search; }; static void pdf_document_document_iface_init (EvDocumentIface *iface); static void pdf_document_security_iface_init (EvDocumentSecurityIface *iface); static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface); static void pdf_document_document_links_iface_init (EvDocumentLinksIface *iface); static void pdf_document_find_iface_init (EvDocumentFindIface *iface); static void pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface); static void pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails, gint page, gint size, gint *width, gint *height); static EvLink * ev_link_from_action (PopplerAction *action); G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT, { G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT, pdf_document_document_iface_init); G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY, pdf_document_security_iface_init); G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, pdf_document_document_thumbnails_iface_init); G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS, pdf_document_document_links_iface_init); G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND, pdf_document_find_iface_init); G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER, pdf_document_ps_exporter_iface_init); }); static void pdf_document_class_init (PdfDocumentClass *klass) { } static void pdf_document_init (PdfDocument *pdf_document) { pdf_document->password = NULL; } static void convert_error (GError *poppler_error, GError **error) { if (poppler_error == NULL) return; if (poppler_error->domain == POPPLER_ERROR) { /* convert poppler errors into EvDocument errors */ gint code = EV_DOCUMENT_ERROR_INVALID; if (poppler_error->code == POPPLER_ERROR_INVALID) code = EV_DOCUMENT_ERROR_INVALID; else if (poppler_error->code == POPPLER_ERROR_ENCRYPTED) code = EV_DOCUMENT_ERROR_ENCRYPTED; g_set_error (error, EV_DOCUMENT_ERROR, code, poppler_error->message, NULL); } else { g_propagate_error (error, poppler_error); } } /* EvDocument */ static gboolean pdf_document_save (EvDocument *document, const char *uri, GError **error) { gboolean retval; GError *poppler_error = NULL; retval = poppler_document_save (PDF_DOCUMENT (document)->document, uri, &poppler_error); if (! retval) convert_error (poppler_error, error); return retval; } static gboolean pdf_document_load (EvDocument *document, const char *uri, GError **error) { GError *poppler_error = NULL; PdfDocument *pdf_document = PDF_DOCUMENT (document); pdf_document->document = poppler_document_new_from_file (uri, pdf_document->password, &poppler_error); if (pdf_document->document == NULL) { convert_error (poppler_error, error); return FALSE; } return TRUE; } static int pdf_document_get_n_pages (EvDocument *document) { return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document); } static void pdf_document_get_page_size (EvDocument *document, int page, double *width, double *height) { PopplerPage *poppler_page; poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document, page); poppler_page_get_size (poppler_page, width, height); } static char * pdf_document_get_page_label (EvDocument *document, int page) { PopplerPage *poppler_page; char *label = NULL; poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document, page); g_object_get (G_OBJECT (poppler_page), "label", &label, NULL); return label; } static GList * pdf_document_get_links (EvDocument *document, int page) { PdfDocument *pdf_document; PopplerPage *poppler_page; GList *retval = NULL; GList *mapping_list; GList *list; double height; pdf_document = PDF_DOCUMENT (document); poppler_page = poppler_document_get_page (pdf_document->document, page); mapping_list = poppler_page_get_link_mapping (poppler_page); poppler_page_get_size (poppler_page, NULL, &height); for (list = mapping_list; list; list = list->next) { PopplerLinkMapping *link_mapping; EvLinkMapping *ev_link_mapping; link_mapping = (PopplerLinkMapping *)list->data; ev_link_mapping = g_new (EvLinkMapping, 1); ev_link_mapping->link = ev_link_from_action (link_mapping->action); ev_link_mapping->x1 = link_mapping->area.x1; ev_link_mapping->x2 = link_mapping->area.x2; /* Invert this for X-style coordinates */ ev_link_mapping->y1 = height - link_mapping->area.y2; ev_link_mapping->y2 = height - link_mapping->area.y1; retval = g_list_prepend (retval, ev_link_mapping); } poppler_page_free_link_mapping (mapping_list); return g_list_reverse (retval); } static GdkPixbuf * pdf_document_render_pixbuf (EvDocument *document, int page, double scale) { PdfDocument *pdf_document; PopplerPage *poppler_page; GdkPixbuf *pixbuf; double width_points, height_points; gint width, height; pdf_document = PDF_DOCUMENT (document); poppler_page = poppler_document_get_page (pdf_document->document, page); poppler_page_get_size (poppler_page, &width_points, &height_points); width = (int) ((width_points * scale) + 0.5); height = (int) ((height_points * scale) + 0.5); pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, width, height); poppler_page_render_to_pixbuf (poppler_page, 0, 0, width, height, scale, pixbuf, 0, 0); return pixbuf; } /* EvDocumentSecurity */ static gboolean pdf_document_has_document_security (EvDocumentSecurity *document_security) { /* FIXME: do we really need to have this? */ return FALSE; } static void pdf_document_set_password (EvDocumentSecurity *document_security, const char *password) { PdfDocument *document = PDF_DOCUMENT (document_security); if (document->password) g_free (document->password); document->password = g_strdup (password); } static gboolean pdf_document_can_get_text (EvDocument *document) { return TRUE; } static EvDocumentInfo * pdf_document_get_info (EvDocument *document) { EvDocumentInfo *info; PopplerPageLayout layout; PopplerPageMode mode; PopplerViewerPreferences view_prefs; info = g_new0 (EvDocumentInfo, 1); info->fields_mask = EV_DOCUMENT_INFO_TITLE | EV_DOCUMENT_INFO_FORMAT | EV_DOCUMENT_INFO_AUTHOR | EV_DOCUMENT_INFO_SUBJECT | EV_DOCUMENT_INFO_KEYWORDS | EV_DOCUMENT_INFO_LAYOUT | EV_DOCUMENT_INFO_START_MODE | /* Missing EV_DOCUMENT_INFO_CREATION_DATE | */ EV_DOCUMENT_INFO_UI_HINTS; g_object_get (PDF_DOCUMENT (document)->document, "title", &(info->title), "format", &(info->format), "author", &(info->author), "subject", &(info->subject), "keywords", &(info->keywords), "page-mode", &mode, "page-layout", &layout, "viewer-preferences", &view_prefs, NULL); switch (layout) { case POPPLER_PAGE_LAYOUT_SINGLE_PAGE: info->layout = EV_DOCUMENT_LAYOUT_SINGLE_PAGE; break; case POPPLER_PAGE_LAYOUT_ONE_COLUMN: info->layout = EV_DOCUMENT_LAYOUT_ONE_COLUMN; break; case POPPLER_PAGE_LAYOUT_TWO_COLUMN_LEFT: info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_LEFT; break; case POPPLER_PAGE_LAYOUT_TWO_COLUMN_RIGHT: info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_RIGHT; case POPPLER_PAGE_LAYOUT_TWO_PAGE_LEFT: info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_LEFT; break; case POPPLER_PAGE_LAYOUT_TWO_PAGE_RIGHT: info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_RIGHT; break; default: break; } switch (mode) { case POPPLER_PAGE_MODE_NONE: info->mode = EV_DOCUMENT_MODE_NONE; break; case POPPLER_PAGE_MODE_USE_THUMBS: info->mode = EV_DOCUMENT_MODE_USE_THUMBS; break; case POPPLER_PAGE_MODE_USE_OC: info->mode = EV_DOCUMENT_MODE_USE_OC; break; case POPPLER_PAGE_MODE_FULL_SCREEN: info->mode = EV_DOCUMENT_MODE_FULL_SCREEN; break; case POPPLER_PAGE_MODE_USE_ATTACHMENTS: info->mode = EV_DOCUMENT_MODE_USE_ATTACHMENTS; default: break; } info->ui_hints = 0; if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_TOOLBAR) { info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_TOOLBAR; } if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_MENUBAR) { info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_MENUBAR; } if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_WINDOWUI) { info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_WINDOWUI; } if (view_prefs & POPPLER_VIEWER_PREFERENCES_FIT_WINDOW) { info->ui_hints |= EV_DOCUMENT_UI_HINT_FIT_WINDOW; } if (view_prefs & POPPLER_VIEWER_PREFERENCES_CENTER_WINDOW) { info->ui_hints |= EV_DOCUMENT_UI_HINT_CENTER_WINDOW; } if (view_prefs & POPPLER_VIEWER_PREFERENCES_DISPLAY_DOC_TITLE) { info->ui_hints |= EV_DOCUMENT_UI_HINT_DISPLAY_DOC_TITLE; } if (view_prefs & POPPLER_VIEWER_PREFERENCES_DIRECTION_RTL) { info->ui_hints |= EV_DOCUMENT_UI_HINT_DIRECTION_RTL; } return info; } static char * pdf_document_get_text (EvDocument *document, int page, EvRectangle *rect) { PdfDocument *pdf_document = PDF_DOCUMENT (document); PopplerPage *poppler_page; PopplerRectangle r; double height; poppler_page = poppler_document_get_page (pdf_document->document, page); g_return_val_if_fail (poppler_page != NULL, NULL); poppler_page_get_size (poppler_page, NULL, &height); r.x1 = rect->x1; r.y1 = height - rect->y2; r.x2 = rect->x2; r.y2 = height - rect->y1; return poppler_page_get_text (poppler_page, &r); } static void pdf_document_document_iface_init (EvDocumentIface *iface) { iface->save = pdf_document_save; iface->load = pdf_document_load; iface->get_n_pages = pdf_document_get_n_pages; iface->get_page_size = pdf_document_get_page_size; iface->get_page_label = pdf_document_get_page_label; iface->get_links = pdf_document_get_links; iface->render_pixbuf = pdf_document_render_pixbuf; iface->get_text = pdf_document_get_text; iface->can_get_text = pdf_document_can_get_text; iface->get_info = pdf_document_get_info; }; static void pdf_document_security_iface_init (EvDocumentSecurityIface *iface) { iface->has_document_security = pdf_document_has_document_security; iface->set_password = pdf_document_set_password; } static gboolean pdf_document_links_has_document_links (EvDocumentLinks *document_links) { PdfDocument *pdf_document = PDF_DOCUMENT (document_links); PopplerIndexIter *iter; g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE); iter = poppler_index_iter_new (pdf_document->document); if (iter == NULL) return FALSE; poppler_index_iter_free (iter); return TRUE; } static EvLink * ev_link_from_action (PopplerAction *action) { EvLink *link; const char *title; title = action->any.title; if (action->type == POPPLER_ACTION_GOTO_DEST) { link = ev_link_new_page (title, action->goto_dest.dest->page_num - 1); } else if (action->type == POPPLER_ACTION_URI) { link = ev_link_new_external (title, action->uri.uri); } else { link = ev_link_new_title (title); } return link; } static void build_tree (PdfDocument *pdf_document, GtkTreeModel *model, GtkTreeIter *parent, PopplerIndexIter *iter) { do { GtkTreeIter tree_iter; PopplerIndexIter *child; PopplerAction *action; EvLink *link; action = poppler_index_iter_get_action (iter); if (action) { gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent); link = ev_link_from_action (action); poppler_action_free (action); gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter, EV_DOCUMENT_LINKS_COLUMN_MARKUP, ev_link_get_title (link), EV_DOCUMENT_LINKS_COLUMN_LINK, link, -1); child = poppler_index_iter_get_child (iter); if (child) build_tree (pdf_document, model, &tree_iter, child); poppler_index_iter_free (child); } } while (poppler_index_iter_next (iter)); } static GtkTreeModel * pdf_document_links_get_links_model (EvDocumentLinks *document_links) { PdfDocument *pdf_document = PDF_DOCUMENT (document_links); GtkTreeModel *model = NULL; PopplerIndexIter *iter; g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL); iter = poppler_index_iter_new (pdf_document->document); /* Create the model iff we have items*/ if (iter != NULL) { model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS, G_TYPE_STRING, G_TYPE_POINTER); build_tree (pdf_document, model, NULL, iter); poppler_index_iter_free (iter); } return model; } static void pdf_document_document_links_iface_init (EvDocumentLinksIface *iface) { iface->has_document_links = pdf_document_links_has_document_links; iface->get_links_model = pdf_document_links_get_links_model; } static GdkPixbuf * make_thumbnail_for_size (PdfDocument *pdf_document, gint page, gint size, gboolean border) { PopplerPage *poppler_page; GdkPixbuf *pixbuf; int width, height; int x_offset, y_offset; double scale; gdouble unscaled_width, unscaled_height; poppler_page = poppler_document_get_page (pdf_document->document, page); g_return_val_if_fail (poppler_page != NULL, NULL); pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document), page, size, &width, &height); poppler_page_get_size (poppler_page, &unscaled_width, &unscaled_height); scale = width / unscaled_width; if (border) { pixbuf = ev_document_misc_get_thumbnail_frame (width, height, NULL); x_offset = 1; y_offset = 1; } else { pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, width, height); gdk_pixbuf_fill (pixbuf, 0xffffffff); x_offset = 0; y_offset = 0; } poppler_page_render_to_pixbuf (poppler_page, 0, 0, width, height, scale, pixbuf, x_offset, y_offset); return pixbuf; } static GdkPixbuf * pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails, gint page, gint size, gboolean border) { PdfDocument *pdf_document; PopplerPage *poppler_page; GdkPixbuf *pixbuf; pdf_document = PDF_DOCUMENT (document_thumbnails); poppler_page = poppler_document_get_page (pdf_document->document, page); g_return_val_if_fail (poppler_page != NULL, NULL); pixbuf = poppler_page_get_thumbnail (poppler_page); if (pixbuf != NULL) { /* The document provides its own thumbnails. */ if (border) { GdkPixbuf *real_pixbuf; real_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, pixbuf); g_object_unref (pixbuf); pixbuf = real_pixbuf; } } else { /* There is no provided thumbnail. We need to make one. */ pixbuf = make_thumbnail_for_size (pdf_document, page, size, border); } return pixbuf; } static void pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails, gint page, gint size, gint *width, gint *height) { PdfDocument *pdf_document; PopplerPage *poppler_page; gint has_thumb; pdf_document = PDF_DOCUMENT (document_thumbnails); poppler_page = poppler_document_get_page (pdf_document->document, page); g_return_if_fail (width != NULL); g_return_if_fail (height != NULL); g_return_if_fail (poppler_page != NULL); has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height); if (!has_thumb) { double page_width, page_height; poppler_page_get_size (poppler_page, &page_width, &page_height); if (page_width > page_height) { *width = size; *height = (int) (size * page_height / page_width); } else { *width = (int) (size * page_width / page_height); *height = size; } } } static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface) { iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail; iface->get_dimensions = pdf_document_thumbnails_get_dimensions; } static gboolean pdf_document_search_idle_callback (void *data) { PdfDocumentSearch *search = (PdfDocumentSearch*) data; PdfDocument *pdf_document = search->document; int n_pages; GList *matches; PopplerPage *page; page = poppler_document_get_page (search->document->document, search->search_page); ev_document_doc_mutex_lock (); matches = poppler_page_find_text (page, search->text); ev_document_doc_mutex_unlock (); search->pages[search->search_page] = matches; ev_document_find_changed (EV_DOCUMENT_FIND (pdf_document), search->search_page); n_pages = pdf_document_get_n_pages (EV_DOCUMENT (search->document)); search->search_page += 1; if (search->search_page == n_pages) { /* wrap around */ search->search_page = 0; } if (search->search_page != search->start_page) { return TRUE; } /* We're done. */ search->idle = 0; /* will return FALSE to remove */ return FALSE; } static PdfDocumentSearch * pdf_document_search_new (PdfDocument *pdf_document, int start_page, const char *text) { PdfDocumentSearch *search; int n_pages; int i; n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document)); search = g_new0 (PdfDocumentSearch, 1); search->text = g_strdup (text); search->pages = g_new0 (GList *, n_pages); for (i = 0; i < n_pages; i++) { search->pages[i] = NULL; } search->document = pdf_document; /* We add at low priority so the progress bar repaints */ search->idle = g_idle_add_full (G_PRIORITY_LOW, pdf_document_search_idle_callback, search, NULL); search->start_page = start_page; search->search_page = start_page; return search; } static void pdf_document_search_free (PdfDocumentSearch *search) { PdfDocument *pdf_document = search->document; int n_pages; int i; if (search->idle != 0) g_source_remove (search->idle); n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document)); for (i = 0; i < n_pages; i++) { g_list_foreach (search->pages[i], (GFunc) g_free, NULL); g_list_free (search->pages[i]); } g_free (search->text); } static void pdf_document_find_begin (EvDocumentFind *document, int page, const char *search_string, gboolean case_sensitive) { PdfDocument *pdf_document = PDF_DOCUMENT (document); /* FIXME handle case_sensitive (right now XPDF * code is always case insensitive for ASCII * and case sensitive for all other languaages) */ if (pdf_document->search && strcmp (search_string, pdf_document->search->text) == 0) return; if (pdf_document->search) pdf_document_search_free (pdf_document->search); pdf_document->search = pdf_document_search_new (pdf_document, page, search_string); } int pdf_document_find_get_n_results (EvDocumentFind *document_find, int page) { PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search; if (search) { return g_list_length (search->pages[page]); } else { return 0; } } gboolean pdf_document_find_get_result (EvDocumentFind *document_find, int page, int n_result, EvRectangle *rectangle) { PdfDocument *pdf_document = PDF_DOCUMENT (document_find); PdfDocumentSearch *search = pdf_document->search; PopplerPage *poppler_page; PopplerRectangle *r; double height; if (search == NULL) return FALSE; r = (PopplerRectangle *) g_list_nth_data (search->pages[page], n_result); if (r == NULL) return FALSE; poppler_page = poppler_document_get_page (pdf_document->document, page); poppler_page_get_size (poppler_page, NULL, &height); rectangle->x1 = r->x1; rectangle->y1 = height - r->y2; rectangle->x2 = r->x2; rectangle->y2 = height - r->y1; return TRUE; } int pdf_document_find_page_has_results (EvDocumentFind *document_find, int page) { PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search; g_return_val_if_fail (search != NULL, FALSE); return search->pages[page] != NULL; } double pdf_document_find_get_progress (EvDocumentFind *document_find) { PdfDocumentSearch *search; int n_pages, pages_done; search = PDF_DOCUMENT (document_find)->search; if (search == NULL) { return 0; } n_pages = pdf_document_get_n_pages (EV_DOCUMENT (document_find)); if (search->search_page > search->start_page) { pages_done = search->search_page - search->start_page + 1; } else if (search->search_page == search->start_page) { pages_done = n_pages; } else { pages_done = n_pages - search->start_page + search->search_page; } return pages_done / (double) n_pages; } static void pdf_document_find_cancel (EvDocumentFind *document) { PdfDocument *pdf_document = PDF_DOCUMENT (document); if (pdf_document->search) { pdf_document_search_free (pdf_document->search); pdf_document->search = NULL; } } static void pdf_document_find_iface_init (EvDocumentFindIface *iface) { iface->begin = pdf_document_find_begin; iface->get_n_results = pdf_document_find_get_n_results; iface->get_result = pdf_document_find_get_result; iface->page_has_results = pdf_document_find_page_has_results; iface->get_progress = pdf_document_find_get_progress; iface->cancel = pdf_document_find_cancel; } static void pdf_document_ps_exporter_begin (EvPSExporter *exporter, const char *filename) { PdfDocument *pdf_document = PDF_DOCUMENT (exporter); int n_pages; n_pages = pdf_document_get_n_pages (EV_DOCUMENT (exporter)); pdf_document->ps_file = poppler_ps_file_new (pdf_document->document, filename, n_pages); } static void pdf_document_ps_exporter_do_page (EvPSExporter *exporter, int page) { PdfDocument *pdf_document = PDF_DOCUMENT (exporter); PopplerPage *poppler_page; g_return_if_fail (pdf_document->ps_file != NULL); poppler_page = poppler_document_get_page (pdf_document->document, page); poppler_page_render_to_ps (poppler_page, pdf_document->ps_file); } static void pdf_document_ps_exporter_end (EvPSExporter *exporter) { PdfDocument *pdf_document = PDF_DOCUMENT (exporter); poppler_ps_file_free (pdf_document->ps_file); pdf_document->ps_file = NULL; } static void pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface) { iface->begin = pdf_document_ps_exporter_begin; iface->do_page = pdf_document_ps_exporter_do_page; iface->end = pdf_document_ps_exporter_end; } PdfDocument * pdf_document_new (void) { return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL)); }