ExportPageSVG

Vector graphics, SVG, extraction

Description

Exports one PDF page as a standalone scalable vector graphic with native paths, searchable text, embedded raster images, and clickable annotation links

Syntax

Delphi

Function TPDFlib.ExportPageSVG(Page, Options: Integer): WideString;

ActiveX

Function PDFlib::ExportPageSVG(Page As Long, Options As Long) As String

DLL

const wchar_t* DLExportPageSVG(int InstanceID, int Page, int Options);
const char* DLExportPageSVGA(int InstanceID, int Page, int Options);

Parameters

Page	The one-based page number
Options	Zero selects `PDF_SVG_DEFAULT`; otherwise combine `PDF_SVG_INCLUDE_PATHS` (1), `PDF_SVG_INCLUDE_IMAGES` (2), `PDF_SVG_INCLUDE_TEXT` (4), `PDF_SVG_INCLUDE_LINKS` (8), and `PDF_SVG_TRANSPARENT_BACKGROUND` (16)

Return values

Returns a self-contained UTF-16 SVG document, or an empty string when validation or extraction fails

Remarks

Painted page paths retain transforms, fill and stroke colours, opacity, line width, cap, join, mitre, dash, even-odd fill, and bounded clipping as SVG path attributes

Text remains searchable and images are embedded as PNG data URIs with a 128 MiB per-image limit, so successful output has no external image dependencies

URI annotations become clickable overlays and internal destinations become #page-N links, while script-capable URI schemes are omitted

Page paths, text and images retain their original paint order, nested Form invocations are expanded, and clipping keeps path geometry and intersection order

The selected page is restored before the call returns and DLL return pointers remain valid until the next string-returning call on the same instance

LastErrorCode is 119 for an invalid page or options and 522 when export fails

Unsupported patterns, shading, soft masks and compositing request a bounded native raster snapshot of the prior paints and the affected operation, with no later paints included; the source document remains unchanged

Opaque fallback is rejected for transparent output or when paint categories have been excluded; inspect GetLastSVGExportDiagnostics for omitted pixels and approximations before accepting the output

Browser font substitution and device colour conversion can approximate the rendering; visible annotation appearances outside page content are disclosed as pixel loss