bool PdfCreator::AddImagePage(fz_image *image, float imgDpi) { CrashIf(!ctx || !doc); if (!ctx || !doc) return false; pdf_page *page = nullptr; fz_device *dev = nullptr; fz_var(page); fz_var(dev); fz_try(ctx) { float zoom = imgDpi ? 72 / imgDpi : 1.0f; fz_matrix ctm = { image->w * zoom, 0, 0, image->h * zoom, 0, 0 }; fz_rect bounds = fz_unit_rect; fz_transform_rect(&bounds, &ctm); page = pdf_create_page(doc, bounds, 72, 0); dev = pdf_page_write(doc, page); fz_fill_image(dev, image, &ctm, 1.0); fz_free_device(dev); dev = nullptr; pdf_insert_page(doc, page, INT_MAX); } fz_always(ctx) { fz_free_device(dev); pdf_free_page(doc, page); } fz_catch(ctx) { return false; } return true; }
static void _pdf_doc_clear(struct _pdf_doc *self) { int i, c = mume_docdoc_count_pages(self); if (self->pages) { for (i = 0; i < c; ++i) { if (self->pages[i]) pdf_free_page(self->pages[i]); } free(self->pages); } if (self->disps) { for (i = 0; i < c; ++i) { if (self->disps[i]) fz_free_display_list(self->disps[i]); } free(self->disps); } if (self->glyph_cache) fz_free_glyph_cache(self->glyph_cache); if (self->xref) pdf_free_xref(self->xref); free(self->media_boxes); free(self->page_rotates); _pdf_doc_reset(self); }
static void pdfapp_loadpage_pdf(pdfapp_t *app) { pdf_page *page; fz_error error; fz_device *mdev; error = pdf_load_page(&page, app->xref, app->pageno - 1); if (error) pdfapp_error(app, error); app->page_bbox = page->mediabox; app->page_rotate = page->rotate; app->page_links = page->links; page->links = NULL; /* Create display list */ app->page_list = fz_new_display_list(); mdev = fz_new_list_device(app->page_list); error = pdf_run_page(app->xref, page, mdev, fz_identity); if (error) { error = fz_rethrow(error, "cannot draw page %d in '%s'", app->pageno, app->doctitle); pdfapp_error(app, error); } fz_free_device(mdev); pdf_free_page(page); pdf_age_store(app->xref->store, 3); }
QImage Pdf::page(int i) { pdf_page* page = pdf_load_page(xref, i); if (page == 0) { printf("cannot load page %d\n", i); return QImage(); } static const float resolution = 300.0; const float zoom = resolution / 72.0; fz_matrix ctm = fz_translate(0, -page->mediabox.y1); ctm = fz_concat(ctm, fz_scale(zoom, -zoom)); ctm = fz_concat(ctm, fz_rotate(page->rotate)); fz_bbox bbox = fz_round_rect(fz_transform_rect(ctm, page->mediabox)); fz_pixmap* pix = fz_new_pixmap_with_rect(ctx, fz_device_gray, bbox); fz_clear_pixmap_with_color(pix, 255); fz_device* dev = fz_new_draw_device(ctx, cache, pix); pdf_run_page(xref, page, dev, ctm); fz_free_device(dev); int w = pix->w; int h = pix->h; QImage image(w, h, QImage::Format_MonoLSB); QVector<QRgb> ct(2); ct[0] = qRgb(255, 255, 255); ct[1] = qRgb(0, 0, 0); image.setColorTable(ct); uchar* s = pix->samples; int stride = image.bytesPerLine(); int bytes = w >> 3; for (int line = 0; line < h; ++line) { uchar* d = image.bits() + stride * line; for (int col = 0; col < bytes; ++col) { uchar data = 0; for (int i = 0; i < 8; ++i) { uchar v = *s++; s++; data >>= 1; if (v < 128) data |= 0x80; } *d++ = data; } } fz_drop_pixmap(ctx, pix); pdf_free_page(ctx, page); return image; }
JNIEXPORT void JNICALL Java_com_artifex_mupdf_MuPDFCore_gotoPageInternal(JNIEnv *env, jobject thiz, int page) { float zoom; fz_matrix ctm; fz_bbox bbox; fz_device *dev = NULL; pdf_page *currentPage = NULL; fz_var(dev); fz_var(currentPage); /* In the event of an error, ensure we give a non-empty page */ pageWidth = 100; pageHeight = 100; LOGE("Goto page %d...", page); fz_try(ctx) { if (currentPageList != NULL) { fz_free_display_list(ctx, currentPageList); currentPageList = NULL; } pagenum = page; currentPage = pdf_load_page(xref, pagenum); zoom = resolution / 72; currentMediabox = pdf_bound_page(xref, currentPage); ctm = fz_scale(zoom, zoom); bbox = fz_round_rect(fz_transform_rect(ctm, currentMediabox)); pageWidth = bbox.x1-bbox.x0; pageHeight = bbox.y1-bbox.y0; /* Render to list */ currentPageList = fz_new_display_list(ctx); dev = fz_new_list_device(ctx, currentPageList); pdf_run_page(xref, currentPage, dev, fz_identity, NULL); } fz_catch(ctx) { LOGE("cannot make displaylist from page %d", pagenum); } pdf_free_page(ctx, currentPage); currentPage = NULL; fz_free_device(dev); dev = NULL; }
void benchfile(char *pdffilename, int loadonly, int pageNo) { pdf_document *xref = NULL; mstimer timer; int page_count; int curpage; fz_context *ctx = fz_new_context(NULL, NULL, FZ_STORE_DEFAULT); if (!ctx) { logbench("Error: fz_new_context() failed\n"); return; } logbench("Starting: %s\n", pdffilename); timerstart(&timer); fz_var(xref); fz_try(ctx) { xref = openxref(ctx, pdffilename); } fz_catch(ctx) { goto Exit; } timerstop(&timer); logbench("load: %.2f ms\n", timeinms(&timer)); page_count = pdf_count_pages(xref); logbench("page count: %d\n", page_count); if (loadonly) goto Exit; for (curpage = 1; curpage <= page_count; curpage++) { pdf_page *page; if ((-1 != pageNo) && (pageNo != curpage)) continue; page = benchloadpage(ctx, xref, curpage); if (page) { benchrenderpage(ctx, xref, page, curpage); pdf_free_page(xref, page); } } Exit: logbench("Finished: %s\n", pdffilename); pdf_close_document(xref); fz_free_context(ctx); }
static void drawpage(fz_context *ctx, fz_document *doc, int pagenum) { fz_page *page; fz_display_list *list = NULL; fz_device *dev = NULL; int start; fz_cookie cookie = { 0 }; int needshot = 0; fz_var(list); fz_var(dev); if (showtime) { start = gettime(); } fz_try(ctx) { page = fz_load_page(doc, pagenum - 1); } fz_catch(ctx) { fz_rethrow_message(ctx, "cannot load page %d in file '%s'", pagenum, filename); } if (mujstest_file) { pdf_document *inter = pdf_specifics(doc); pdf_widget *widget = NULL; if (inter) widget = pdf_first_widget(inter, (pdf_page *)page); if (widget) { fprintf(mujstest_file, "GOTO %d\n", pagenum); needshot = 1; } for (;widget; widget = pdf_next_widget(widget)) { fz_rect rect; int w, h, len; int type = pdf_widget_get_type(widget); pdf_bound_widget(widget, &rect); w = (rect.x1 - rect.x0); h = (rect.y1 - rect.y0); ++mujstest_count; switch (type) { default: fprintf(mujstest_file, "%% UNKNOWN %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1); break; case PDF_WIDGET_TYPE_PUSHBUTTON: fprintf(mujstest_file, "%% PUSHBUTTON %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1); break; case PDF_WIDGET_TYPE_CHECKBOX: fprintf(mujstest_file, "%% CHECKBOX %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1); break; case PDF_WIDGET_TYPE_RADIOBUTTON: fprintf(mujstest_file, "%% RADIOBUTTON %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1); break; case PDF_WIDGET_TYPE_TEXT: { int maxlen = pdf_text_widget_max_len(inter, widget); int texttype = pdf_text_widget_content_type(inter, widget); /* If height is low, assume a single row, and base * the width off that. */ if (h < 10) { w = (w+h-1) / (h ? h : 1); h = 1; } /* Otherwise, if width is low, work off height */ else if (w < 10) { h = (w+h-1) / (w ? w : 1); w = 1; } else { w = (w+9)/10; h = (h+9)/10; } len = w*h; if (len < 2) len = 2; if (len > maxlen) len = maxlen; fprintf(mujstest_file, "%% TEXT %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1); switch (texttype) { default: case PDF_WIDGET_CONTENT_UNRESTRAINED: fprintf(mujstest_file, "TEXT %d ", mujstest_count); escape_string(mujstest_file, len-3, lorem); fprintf(mujstest_file, "\n"); break; case PDF_WIDGET_CONTENT_NUMBER: fprintf(mujstest_file, "TEXT %d\n", mujstest_count); break; case PDF_WIDGET_CONTENT_SPECIAL: #ifdef __MINGW32__ fprintf(mujstest_file, "TEXT %I64d\n", 46702919800LL + mujstest_count); #else fprintf(mujstest_file, "TEXT %lld\n", 46702919800LL + mujstest_count); #endif break; case PDF_WIDGET_CONTENT_DATE: fprintf(mujstest_file, "TEXT Jun %d 1979\n", 1 + ((13 + mujstest_count) % 30)); break; case PDF_WIDGET_CONTENT_TIME: ++mujstest_count; fprintf(mujstest_file, "TEXT %02d:%02d\n", ((mujstest_count/60) % 24), mujstest_count % 60); break; } break; } case PDF_WIDGET_TYPE_LISTBOX: fprintf(mujstest_file, "%% LISTBOX %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1); break; case PDF_WIDGET_TYPE_COMBOBOX: fprintf(mujstest_file, "%% COMBOBOX %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1); break; } fprintf(mujstest_file, "CLICK %0.2f %0.2f\n", (rect.x0+rect.x1)/2, (rect.y0+rect.y1)/2); } } if (uselist) { fz_try(ctx) { list = fz_new_display_list(ctx); dev = fz_new_list_device(ctx, list); fz_run_page(doc, page, dev, &fz_identity, &cookie); } fz_always(ctx) { fz_free_device(dev); dev = NULL; } fz_catch(ctx) { fz_drop_display_list(ctx, list); fz_free_page(doc, page); fz_rethrow_message(ctx, "cannot draw page %d in file '%s'", pagenum, filename); } } if (showxml) { fz_try(ctx) { dev = fz_new_trace_device(ctx); if (list) fz_run_display_list(list, dev, &fz_identity, &fz_infinite_rect, &cookie); else fz_run_page(doc, page, dev, &fz_identity, &cookie); } fz_always(ctx) { fz_free_device(dev); dev = NULL; } fz_catch(ctx) { fz_drop_display_list(ctx, list); fz_free_page(doc, page); fz_rethrow(ctx); } } if (showtext) { fz_text_page *text = NULL; fz_var(text); fz_try(ctx) { text = fz_new_text_page(ctx); dev = fz_new_text_device(ctx, sheet, text); if (showtext == TEXT_HTML) fz_disable_device_hints(dev, FZ_IGNORE_IMAGE); if (list) fz_run_display_list(list, dev, &fz_identity, &fz_infinite_rect, &cookie); else fz_run_page(doc, page, dev, &fz_identity, &cookie); fz_free_device(dev); dev = NULL; if (showtext == TEXT_XML) { fz_print_text_page_xml(ctx, out, text); } else if (showtext == TEXT_HTML) { fz_analyze_text(ctx, sheet, text); fz_print_text_page_html(ctx, out, text); } else if (showtext == TEXT_PLAIN) { fz_print_text_page(ctx, out, text); fz_printf(out, "\f\n"); } } fz_always(ctx) { fz_free_device(dev); dev = NULL; fz_free_text_page(ctx, text); } fz_catch(ctx) { fz_drop_display_list(ctx, list); fz_free_page(doc, page); fz_rethrow(ctx); } } if (showmd5 || showtime) printf("page %s %d", filename, pagenum); if (pdfout) { fz_matrix ctm; fz_rect bounds, tbounds; pdf_page *newpage; fz_bound_page(doc, page, &bounds); fz_rotate(&ctm, rotation); tbounds = bounds; fz_transform_rect(&tbounds, &ctm); newpage = pdf_create_page(pdfout, bounds, 72, 0); fz_try(ctx) { dev = pdf_page_write(pdfout, newpage); if (list) fz_run_display_list(list, dev, &ctm, &tbounds, &cookie); else fz_run_page(doc, page, dev, &ctm, &cookie); fz_free_device(dev); dev = NULL; } fz_always(ctx) { fz_free_device(dev); dev = NULL; } fz_catch(ctx) { fz_drop_display_list(ctx, list); fz_free_page(doc, page); fz_rethrow(ctx); } pdf_insert_page(pdfout, newpage, INT_MAX); pdf_free_page(pdfout, newpage); } if (output && output_format == OUT_SVG) { float zoom; fz_matrix ctm; fz_rect bounds, tbounds; char buf[512]; FILE *file; fz_output *out; if (!strcmp(output, "-")) file = stdout; else { sprintf(buf, output, pagenum); file = fopen(buf, "wb"); if (file == NULL) fz_throw(ctx, FZ_ERROR_GENERIC, "cannot open file '%s': %s", buf, strerror(errno)); } out = fz_new_output_with_file(ctx, file); fz_bound_page(doc, page, &bounds); zoom = resolution / 72; fz_pre_rotate(fz_scale(&ctm, zoom, zoom), rotation); tbounds = bounds; fz_transform_rect(&tbounds, &ctm); fz_try(ctx) { dev = fz_new_svg_device(ctx, out, tbounds.x1-tbounds.x0, tbounds.y1-tbounds.y0); if (list) fz_run_display_list(list, dev, &ctm, &tbounds, &cookie); else fz_run_page(doc, page, dev, &ctm, &cookie); fz_free_device(dev); dev = NULL; } fz_always(ctx) { fz_free_device(dev); dev = NULL; fz_close_output(out); if (file != stdout) fclose(file); } fz_catch(ctx) { fz_drop_display_list(ctx, list); fz_free_page(doc, page); fz_rethrow(ctx); } }
static void drawpage(fz_context *ctx, fz_document *doc, int pagenum) { fz_page *page; fz_display_list *list = NULL; fz_device *dev = NULL; int start; fz_cookie cookie = { 0 }; fz_var(list); fz_var(dev); if (showtime) { start = gettime(); } fz_try(ctx) { page = fz_load_page(doc, pagenum - 1); } fz_catch(ctx) { fz_rethrow_message(ctx, "cannot load page %d in file '%s'", pagenum, filename); } if (uselist) { fz_try(ctx) { list = fz_new_display_list(ctx); dev = fz_new_list_device(ctx, list); fz_run_page(doc, page, dev, &fz_identity, &cookie); } fz_always(ctx) { fz_free_device(dev); dev = NULL; } fz_catch(ctx) { fz_drop_display_list(ctx, list); fz_free_page(doc, page); fz_rethrow_message(ctx, "cannot draw page %d in file '%s'", pagenum, filename); } } if (showxml) { fz_try(ctx) { dev = fz_new_trace_device(ctx); if (list) fz_run_display_list(list, dev, &fz_identity, &fz_infinite_rect, &cookie); else fz_run_page(doc, page, dev, &fz_identity, &cookie); } fz_always(ctx) { fz_free_device(dev); dev = NULL; } fz_catch(ctx) { fz_drop_display_list(ctx, list); fz_free_page(doc, page); fz_rethrow(ctx); } } if (showtext) { fz_text_page *text = NULL; fz_var(text); fz_try(ctx) { text = fz_new_text_page(ctx); dev = fz_new_text_device(ctx, sheet, text); if (showtext == TEXT_HTML) fz_disable_device_hints(dev, FZ_IGNORE_IMAGE); if (list) fz_run_display_list(list, dev, &fz_identity, &fz_infinite_rect, &cookie); else fz_run_page(doc, page, dev, &fz_identity, &cookie); fz_free_device(dev); dev = NULL; if (showtext == TEXT_XML) { fz_print_text_page_xml(ctx, out, text); } else if (showtext == TEXT_HTML) { fz_analyze_text(ctx, sheet, text); fz_print_text_page_html(ctx, out, text); } else if (showtext == TEXT_PLAIN) { fz_print_text_page(ctx, out, text); fz_printf(out, "\f\n"); } } fz_always(ctx) { fz_free_device(dev); dev = NULL; fz_free_text_page(ctx, text); } fz_catch(ctx) { fz_drop_display_list(ctx, list); fz_free_page(doc, page); fz_rethrow(ctx); } } if (showmd5 || showtime || showfeatures) printf("page %s %d", filename, pagenum); if (showfeatures) { int iscolor; dev = fz_new_test_device(ctx, &iscolor, 0.02f); fz_try(ctx) { if (list) fz_run_display_list(list, dev, &fz_identity, &fz_infinite_rect, NULL); else fz_run_page(doc, page, dev, &fz_identity, &cookie); } fz_always(ctx) { fz_free_device(dev); dev = NULL; } fz_catch(ctx) { fz_rethrow(ctx); } printf(" %s", iscolor ? "color" : "grayscale"); } if (pdfout) { fz_matrix ctm; fz_rect bounds, tbounds; pdf_page *newpage; fz_bound_page(doc, page, &bounds); fz_rotate(&ctm, rotation); tbounds = bounds; fz_transform_rect(&tbounds, &ctm); newpage = pdf_create_page(pdfout, bounds, 72, 0); fz_try(ctx) { dev = pdf_page_write(pdfout, newpage); if (list) fz_run_display_list(list, dev, &ctm, &tbounds, &cookie); else fz_run_page(doc, page, dev, &ctm, &cookie); fz_free_device(dev); dev = NULL; } fz_always(ctx) { fz_free_device(dev); dev = NULL; } fz_catch(ctx) { fz_drop_display_list(ctx, list); fz_free_page(doc, page); fz_rethrow(ctx); } pdf_insert_page(pdfout, newpage, INT_MAX); pdf_free_page(pdfout, newpage); } if (output && output_format == OUT_SVG) { float zoom; fz_matrix ctm; fz_rect bounds, tbounds; char buf[512]; FILE *file; fz_output *out; if (!strcmp(output, "-")) file = stdout; else { sprintf(buf, output, pagenum); file = fopen(buf, "wb"); if (file == NULL) fz_throw(ctx, FZ_ERROR_GENERIC, "cannot open file '%s': %s", buf, strerror(errno)); } out = fz_new_output_with_file(ctx, file); fz_bound_page(doc, page, &bounds); zoom = resolution / 72; fz_pre_rotate(fz_scale(&ctm, zoom, zoom), rotation); tbounds = bounds; fz_transform_rect(&tbounds, &ctm); fz_try(ctx) { dev = fz_new_svg_device(ctx, out, tbounds.x1-tbounds.x0, tbounds.y1-tbounds.y0); if (list) fz_run_display_list(list, dev, &ctm, &tbounds, &cookie); else fz_run_page(doc, page, dev, &ctm, &cookie); fz_free_device(dev); dev = NULL; } fz_always(ctx) { fz_free_device(dev); dev = NULL; fz_close_output(out); if (file != stdout) fclose(file); } fz_catch(ctx) { fz_drop_display_list(ctx, list); fz_free_page(doc, page); fz_rethrow(ctx); } }
pdf_page * pdf_load_page_by_obj(pdf_document *doc, int number, pdf_obj *pageref) { fz_context *ctx = doc->ctx; pdf_page *page; pdf_annot *annot; pdf_obj *pageobj, *obj; fz_rect mediabox, cropbox, realbox; float userunit; fz_matrix mat; /* SumatraPDF: allow replacing potentially slow pdf_lookup_page_obj */ pageobj = pdf_resolve_indirect(pageref); page = fz_malloc_struct(ctx, pdf_page); page->resources = NULL; page->contents = NULL; page->transparency = 0; page->links = NULL; page->annots = NULL; page->annot_tailp = &page->annots; page->deleted_annots = NULL; page->tmp_annots = NULL; page->me = pdf_keep_obj(pageobj); page->incomplete = 0; obj = pdf_dict_gets(pageobj, "UserUnit"); if (pdf_is_real(obj)) userunit = pdf_to_real(obj); else userunit = 1; pdf_to_rect(ctx, pdf_lookup_inherited_page_item(doc, pageobj, "MediaBox"), &mediabox); if (fz_is_empty_rect(&mediabox)) { fz_warn(ctx, "cannot find page size for page %d", number + 1); mediabox.x0 = 0; mediabox.y0 = 0; mediabox.x1 = 612; mediabox.y1 = 792; } pdf_to_rect(ctx, pdf_lookup_inherited_page_item(doc, pageobj, "CropBox"), &cropbox); if (!fz_is_empty_rect(&cropbox)) fz_intersect_rect(&mediabox, &cropbox); page->mediabox.x0 = fz_min(mediabox.x0, mediabox.x1) * userunit; page->mediabox.y0 = fz_min(mediabox.y0, mediabox.y1) * userunit; page->mediabox.x1 = fz_max(mediabox.x0, mediabox.x1) * userunit; page->mediabox.y1 = fz_max(mediabox.y0, mediabox.y1) * userunit; if (page->mediabox.x1 - page->mediabox.x0 < 1 || page->mediabox.y1 - page->mediabox.y0 < 1) { fz_warn(ctx, "invalid page size in page %d", number + 1); page->mediabox = fz_unit_rect; } page->rotate = pdf_to_int(pdf_lookup_inherited_page_item(doc, pageobj, "Rotate")); /* Snap page->rotate to 0, 90, 180 or 270 */ if (page->rotate < 0) page->rotate = 360 - ((-page->rotate) % 360); if (page->rotate >= 360) page->rotate = page->rotate % 360; page->rotate = 90*((page->rotate + 45)/90); if (page->rotate > 360) page->rotate = 0; fz_pre_rotate(fz_scale(&page->ctm, 1, -1), -page->rotate); realbox = page->mediabox; fz_transform_rect(&realbox, &page->ctm); fz_pre_scale(fz_translate(&mat, -realbox.x0, -realbox.y0), userunit, userunit); fz_concat(&page->ctm, &page->ctm, &mat); fz_try(ctx) { obj = pdf_dict_gets(pageobj, "Annots"); if (obj) { page->links = pdf_load_link_annots(doc, obj, &page->ctm); pdf_load_annots(doc, page, obj); } } fz_catch(ctx) { if (fz_caught(ctx) != FZ_ERROR_TRYLATER) /* SumatraPDF: ignore annotations in case of unexpected errors */ fz_warn(ctx, "unexpectedly failed to load page annotations"); page->incomplete |= PDF_PAGE_INCOMPLETE_ANNOTS; } page->duration = pdf_to_real(pdf_dict_gets(pageobj, "Dur")); obj = pdf_dict_gets(pageobj, "Trans"); page->transition_present = (obj != NULL); if (obj) { pdf_load_transition(doc, page, obj); } // TODO: inherit page->resources = pdf_lookup_inherited_page_item(doc, pageobj, "Resources"); if (page->resources) pdf_keep_obj(page->resources); obj = pdf_dict_gets(pageobj, "Contents"); fz_try(ctx) { page->contents = pdf_keep_obj(obj); if (pdf_resources_use_blending(doc, page->resources)) page->transparency = 1; /* cf. http://code.google.com/p/sumatrapdf/issues/detail?id=2107 */ else if (!strcmp(pdf_to_name(pdf_dict_getp(pageobj, "Group/S")), "Transparency")) page->transparency = 1; for (annot = page->annots; annot && !page->transparency; annot = annot->next) if (annot->ap && pdf_resources_use_blending(doc, annot->ap->resources)) page->transparency = 1; } fz_catch(ctx) { if (fz_caught(ctx) != FZ_ERROR_TRYLATER) { pdf_free_page(doc, page); fz_rethrow_message(ctx, "cannot load page %d contents (%d 0 R)", number + 1, pdf_to_num(pageref)); } page->incomplete |= PDF_PAGE_INCOMPLETE_CONTENTS; } return page; }
void PDFDocument::PDFPageCache::Discard(const int &page, pdf_page * const &page_struct) { std::unique_lock<std::mutex> lock(_mutex); pdf_free_page(_parent->_pdf_document, page_struct); }