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7771b0f698
Add a new FPDF_SUBSET_NEW_FONTS flag, which will be used to subset new fonts embedded into the saved PDF. Then, add tests and TODOs. For now, this flag is a no-op. Font subsetting will be implemented in https://pdfium-review.googlesource.com/c/pdfium/+/141854. Bug: 476127152 Change-Id: I25fa7e8acebae5ac917928c4422c0cde5b7bc0d1 Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/141852 Commit-Queue: Andy Phan <andyphan@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
94 lines
3.2 KiB
C
94 lines
3.2 KiB
C
// Copyright 2014 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef PUBLIC_FPDF_SAVE_H_
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#define PUBLIC_FPDF_SAVE_H_
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// clang-format off
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// NOLINTNEXTLINE(build/include)
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#include "fpdfview.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Structure for custom file write
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typedef struct FPDF_FILEWRITE_ {
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//
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// Version number of the interface. Currently must be 1.
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//
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int version;
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// Method: WriteBlock
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// Output a block of data in your custom way.
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// Interface Version:
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// 1
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// Implementation Required:
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// Yes
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// Comments:
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// Called by function FPDF_SaveDocument
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// Parameters:
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// self - Pointer to the structure itself
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// data - Pointer to a buffer to output
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// size - The size of the buffer.
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// Return value:
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// Should be non-zero if successful, zero for error.
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int (*WriteBlock)(struct FPDF_FILEWRITE_* self,
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const void* data,
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unsigned long size);
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} FPDF_FILEWRITE;
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// Flags for FPDF_SaveAsCopy().
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// FPDF_INCREMENTAL and FPDF_NO_INCREMENTAL cannot be used together.
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#define FPDF_INCREMENTAL (1 << 0)
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#define FPDF_NO_INCREMENTAL (1 << 1)
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// Deprecated. Use FPDF_REMOVE_SECURITY instead.
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// TODO(crbug.com/42270430): Remove FPDF_REMOVE_SECURITY_DEPRECATED.
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#define FPDF_REMOVE_SECURITY_DEPRECATED 3
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#define FPDF_REMOVE_SECURITY (1 << 2)
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// Experimental. Subsets any embedded font files for new text objects added to
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// the document.
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#define FPDF_SUBSET_NEW_FONTS (1 << 3)
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// Function: FPDF_SaveAsCopy
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// Saves the copy of specified document in custom way.
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// Parameters:
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// document - Handle to document, as returned by
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// FPDF_LoadDocument() or FPDF_CreateNewDocument().
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// file_write - A pointer to a custom file write structure.
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// flags - Flags above that affect how the PDF gets saved.
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// Pass in 0 when there are no flags.
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// Return value:
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// TRUE for succeed, FALSE for failed.
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//
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FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDF_SaveAsCopy(FPDF_DOCUMENT document,
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FPDF_FILEWRITE* file_write,
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FPDF_DWORD flags);
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// Function: FPDF_SaveWithVersion
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// Same as FPDF_SaveAsCopy(), except the file version of the
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// saved document can be specified by the caller.
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// Parameters:
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// document - Handle to document.
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// file_write - A pointer to a custom file write structure.
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// flags - The creating flags.
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// file_version - The PDF file version. File version: 14 for 1.4,
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// 15 for 1.5, ...
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// Return value:
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// TRUE if succeed, FALSE if failed.
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//
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FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
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FPDF_SaveWithVersion(FPDF_DOCUMENT document,
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FPDF_FILEWRITE* file_write,
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FPDF_DWORD flags,
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int file_version);
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#ifdef __cplusplus
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}
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#endif
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#endif // PUBLIC_FPDF_SAVE_H_
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