Foxit Developer

Office to PDF (3rd conversion engine) ​

Foxit PDF SDK provides robust Office to PDF conversion, supporting high-quality conversion of Word, Excel, and PowerPoint documents to PDF. This section explains how to implement this using third-party engines.

Before you begin ​

Before using this feature, see the Office to PDF example configuration and run guide for system requirements, environment setup, conversion engine parameters, sample execution, and other details.

LibreOffice multi-threaded conversion (Linux x86/x64) ​

On Linux x86/x64, Foxit PDF SDK provides a dedicated LibreOffice binary that supports multi-threaded Office-to-PDF conversion.

Implementation:

Assign the path to the architecture-specific binary engine to the engine_path parameter to enable multi-threaded conversion.

Code example:

c++
WString engine_path = L"/resource-folder/x64/fxoffice2pdf"; / Replace with the correct engine path.
foxit::addon::conversion::Convert::FromWord(word_file_path, L"", output_path, engine_path, word_convert_setting_data);

See the Foxit PDF SDK multi-threading safety guide for thread-safety details.

The sample code below shows how to use the Office2PDF module in Foxit PDF SDK on Windows and Linux with third-party engines to convert different Office document types to PDF. On Windows, samples typically select the Microsoft or WPS engine via the engine parameter; on Linux, they specify the LibreOffice or WPS engine path via engine_path.

Convert Word documents to PDF ​

c++
#include "include/addon/conversion/fs_convert.h"
…
// Make sure that SDK has already been initialized successfully.

WString word_file_path = L"test.doc";
WString output_path = L"saved.pdf";

// Use default Word2PDFSettingData values.
foxit::addon::conversion::Word2PDFSettingData word_convert_setting_data;
#if defined(_WIN32) || defined(_WIN64)
foxit::addon::conversion::Convert::FromWord(word_file_path, L"", output_path, word_convert_setting_data, foxit::addon::conversion::Convert::e_Office2PdfEngineMicrosoft);
#else
foxit::addon::conversion::Convert::FromWord(word_file_path, L"", output_path, engine_path, word_convert_setting_data);
#endif
C
#include "include/fs_basictypes_c.h"
#include "include/fs_convert_c.h"
…
// Make sure that SDK has already been initialized successfully.

const wchar_t* word_file_path = L"test.doc";
const wchar_t* output_path = L"saved.pdf";

// Use default Word2PDFSettingData values.
FSWord2PDFSettingData word_convert_setting_data;
word_convert_setting_data.include_doc_props = false;
word_convert_setting_data.optimize_option = e_FSConvertOptimizeOptionForPrint;
word_convert_setting_data.content_option = e_FSConvertContentOptionOnlyContent;
word_convert_setting_data.bookmark_option = e_FSConvertBookmarkOptionNone;
word_convert_setting_data.convert_to_pdfa = false;
FSDK_Convert_FromWord(word_file_path, L"", output_path, word_convert_setting_data, e_FSOffice2PdfEngineMicrosoft);
java
import com.foxit.sdk.addon.conversion.Word2PDFSettingData;
import com.foxit.sdk.addon.conversion.Convert;
 
// Make sure that SDK has already been initialized successfully.

String word_file_path = "test.doc";
String saved_pdf_path = "saved.pdf";

// Use default Word2PDFSettingData values.
Word2PDFSettingData word_convert_setting_data = new Word2PDFSettingData();
String os_name = System.getProperty("os.name").toLowerCase();
if (os_name.contains("win")) {
  Convert.fromWord(word_file_path, "", saved_pdf_path, word_convert_setting_data, Convert.e_Office2PdfEngineMicrosoft);
} else {
  Convert.fromWord(word_file_path, "", saved_pdf_path, engine_path, word_convert_setting_data);
}
py
import sys
import site

if sys.version_info.major == 2:
    _PYTHON2_ = True
else:
    _PYTHON2_ = False

if _PYTHON2_:
    # replace with the python2 lib path
    site.addsitedir(‘../../../’)
    from FoxitPDFSDKPython2 import *
else:
    from FoxitPDFSDKPython3 import *

...
# Make sure that SDK has already been initialized successfully.

word_file_path = "test.doc"
output_path = "saved.pdf"

# Use default Word2PDFSettingData values.
word_convert_setting_data = Word2PDFSettingData()
if sys.platform == "linux":
  Convert.FromWord(word_file_path, "", output_path, engine_path, word_convert_setting_data)
else:
  Convert.FromWord(word_file_path, "", output_path, word_convert_setting_data, Convert.e_Office2PdfEngineMicrosoft)
js
const FSDK = require("@fuxinsoft/foxit-pdf-sdk-node");

...
// Make sure that SDK has already been initialized successfully.

let word_file_path = "test.doc";
let output_path = "saved.pdf";

// Use default Word2PDFSettingData values.
let word_convert_setting_data = new FSDK.Word2PDFSettingData();
if (process.platform === 'win32') {
  FSDK.Convert.FromWord(word_file_path, "", output_path, word_convert_setting_data, FSDK.Convert.e_Office2PdfEngineMicrosoft);
} else {
  engine_path = "";  / Please fill in the correct engine path. For example, "/usr/lib/libreoffice/program".
  FSDK.Convert.FromWord(word_file_path, "", output_path, engine_path, word_convert_setting_data);
}
csharp
using foxit;
…
// Make sure that SDK has already been initialized successfully.

string word_file_path = "test.doc";
string saved_pdf_path = "saved.pdf";

// Use default Word2PDFSettingData values.
using (foxit.addon.conversion.Word2PDFSettingData word_convert_setting_data = new foxit.addon.conversion.Word2PDFSettingData())
{
	foxit.addon.conversion.Convert.FromWord(word_file_path, "", saved_pdf_path, word_convert_setting_data, foxit.addon.conversion.Convert.e_Office2PdfEngineMicrosoft);
}
go
import (
. "foxit.com/fsdk"
“fmt”
“runtime”
) 

...
# Make sure that SDK has already been initialized successfully.

word_file_path := "test.doc"
output_path := "saved.pdf"

# Use default Word2PDFSettingData values.
word_convert_setting_data := NewWord2PDFSettingData()
if runtime.GOOS == "linux" {
  ConvertFromWord(word_file_path, "", output_path, engine_path, word_convert_setting_data)
} else{
  ConvertFromWord(word_file_path, "", output_path, word_convert_setting_data, e_Office2PdfEngineMicrosoft)
}

Convert Excel files to PDF ​

c++
#include "include/addon/conversion/fs_convert.h"
…
// Make sure that SDK has already been initialized successfully.

WString excel_file_path = L"test.xls";
WString output_path = L"saved.pdf";

// Use default Excel2PDFSettingData values.
foxit::addon::conversion::Excel2PDFSettingData excel_convert_setting_data;
#if defined(_WIN32) || defined(_WIN64)
foxit::addon::conversion::Convert::FromExcel(excel_file_path, L"", output_path, excel_convert_setting_data, foxit::addon::conversion::Convert::e_Office2PdfEngineMicrosoft);
#else
foxit::addon::conversion::Convert::FromExcel(excel_file_path, L"", output_path, engine_path, excel_convert_setting_data);
#endif
C
#include "include/fs_basictypes_c.h"
#include "include/fs_convert_c.h"
…
// Make sure that SDK has already been initialized successfully.

const wchar_t* excel_file_path = L"test.xls";
const wchar_t* output_path = L"saved.pdf";

// Use default Excel2PDFSettingData values.
FSExcel2PDFSettingData excel_convert_setting_data;
excel_convert_setting_data.include_doc_props = false;
excel_convert_setting_data.quality = e_FSConvertQualityStandard;
excel_convert_setting_data.ignore_print_area = true;
excel_convert_setting_data.scale_type = e_FSScaleTypeNone;
excel_convert_setting_data.convert_to_pdfa = false;
FSDK_Convert_FromExcel(excel_file_path, L"", output_path, excel_convert_setting_data, e_FSOffice2PdfEngineMicrosoft);
java
import com.foxit.sdk.addon.conversion.Excel2PDFSettingData;
import com.foxit.sdk.addon.conversion.Convert;
 
// Make sure that SDK has already been initialized successfully.

String excel_file_path = "test.xls";
String saved_pdf_path = "saved.pdf";

// Use default Excel2PDFSettingData values.
Excel2PDFSettingData excel_convert_setting_data = new Excel2PDFSettingData();
String os_name = System.getProperty("os.name").toLowerCase();
if (os_name.contains("win")) {
  Convert.fromExcel(excel_file_path, "", saved_pdf_path, excel_convert_setting_data, Convert.e_Office2PdfEngineMicrosoft);
} else {
  Convert.fromExcel(excel_file_path, "", saved_pdf_path, engine_path, excel_convert_setting_data);
}
py
import sys
import site

if sys.version_info.major == 2:
    _PYTHON2_ = True
else:
    _PYTHON2_ = False

if _PYTHON2_:
    # replace with the python2 lib path
    site.addsitedir(‘../../../’)
    from FoxitPDFSDKPython2 import *
else:
    from FoxitPDFSDKPython3 import *

...
# Make sure that SDK has already been initialized successfully.

excel_file_path = "test.xls"
output_path = "saved.pdf"

# Use default Excel2PDFSettingData values.
excel_convert_setting_data = Excel2PDFSettingData()
if sys.platform == "linux":
  Convert.FromExcel(excel_file_path, "", output_path, engine_path, excel_convert_setting_data)
else:
  Convert.FromExcel(excel_file_path, "", output_path, excel_convert_setting_data, Convert.e_Office2PdfEngineMicrosoft)
js
const FSDK = require("@fuxinsoft/foxit-pdf-sdk-node");

...
// Make sure that SDK has already been initialized successfully.

let excel_file_path = "test.xlsx";
let output_path = "saved.pdf";

// Use default Excel2PDFSettingData values.
let excel_convert_setting_data = new FSDK.Excel2PDFSettingData();
if (process.platform === 'win32') {
  FSDK.Convert.FromExcel(excel_file_path, "", output_path, excel_convert_setting_data, FSDK.Convert.e_Office2PdfEngineMicrosoft);
} else {
  FSDK.Convert.FromExcel(excel_file_path, "", output_path, engine_path, excel_convert_setting_data);
}
csharp
using foxit;
…
// Make sure that SDK has already been initialized successfully.

string excel_file_path= "test.xls";
string saved_pdf_path = "saved.pdf";
// Use default Excel2PDFSettingData values.
using (foxit.addon.conversion.Excel2PDFSettingData excel_convert_setting_data = new foxit.addon.conversion.Excel2PDFSettingData())
{
	foxit.addon.conversion.Convert.FromExcel(excel_file_path, "", saved_pdf_path, excel_convert_setting_data, foxit.addon.conversion.Convert.e_Office2PdfEngineMicrosoft);
}
go
import (
. "foxit.com/fsdk"
“fmt”
“runtime”
) 
...
# Make sure that SDK has already been initialized successfully.

excel_file_path := "test.xls"
output_path := "saved.pdf"

# Use default Excel2PDFSettingData values.
excel_convert_setting_data := NewExcel2PDFSettingData()
if runtime.GOOS == "linux"{
  ConvertFromExcel(excel_file_path, "", output_path, engine_path, excel_convert_setting_data)
}
else{
  ConvertFromExcel(excel_file_path, "", output_path, excel_convert_setting_data, e_Office2PdfEngineMicrosoft)
}

Convert PowerPoint files to PDF ​

c++
#include "include/addon/conversion/fs_convert.h"

// Make sure that SDK has already been initialized successfully.

WString ppt_file_path = L"test.ppt";
WString output_path = L"saved.pdf";

// Use default PowerPoint2PDFSettingData values.
foxit::addon::conversion::PowerPoint2PDFSettingData ppt_convert_setting_data;
#if defined(_WIN32) || defined(_WIN64)
foxit::addon::conversion::Convert::FromPowerPoint(ppt_file_path, L"", output_path, ppt_convert_setting_data, foxit::addon::conversion::Convert::e_Office2PdfEngineMicrosoft);
#else
foxit::addon::conversion::Convert::FromPowerPoint(ppt_file_path, L"", output_path, engine_path,  ppt_convert_setting_data);
#endif
C
#include "include/fs_basictypes_c.h"
#include "include/fs_convert_c.h"
…
// Make sure that SDK has already been initialized successfully.

const wchar_t* ppt_file_path = L"test.ppt";
const wchar_t* output_path = L"saved.pdf";

// Use default PowerPoint2PDFSettingData values.
FSPowerPoint2PDFSettingData ppt_convert_setting_data;
ppt_convert_setting_data.intent = e_FSConvertIntentPrint;
ppt_convert_setting_data.frame_output_slides = false;
ppt_convert_setting_data.output_type = e_FSOutputSlides;
ppt_convert_setting_data.handout_order = e_FSHandoutOrderVerticalFirst;
ppt_convert_setting_data.output_hidden_slides = false;
ppt_convert_setting_data.include_doc_props = false;
FSDK_Convert_FromPowerPoint(ppt_file_path, L"", output_path, ppt_convert_setting_data, e_FSOffice2PdfEngineMicrosoft);
java
import com.foxit.sdk.addon.conversion.PowerPoint2PDFSettingData;
import com.foxit.sdk.addon.conversion.Convert;

// Make sure that SDK has already been initialized successfully.

String ppt_file_path = "test.ppt";
String saved_pdf_path = "saved.pdf";

// Use default PowerPoint2PDFSettingData values.
PowerPoint2PDFSettingData ppt_convert_setting_data = new PowerPoint2PDFSettingData();
String os_name = System.getProperty("os.name").toLowerCase();
if (os_name.contains("win")) {
  Convert.fromPowerPoint(ppt_file_path, "", saved_pdf_path, ppt_convert_setting_data, Convert.e_Office2PdfEngineMicrosoft);
} else {
  Convert.fromPowerPoint(ppt_file_path, "", saved_pdf_path, engine_path, ppt_convert_setting_data);
}
py
import sys
import site

if sys.version_info.major == 2:
    _PYTHON2_ = True
else:
    _PYTHON2_ = False

if _PYTHON2_:
    # replace with the python2 lib path
    site.addsitedir(‘../../../’)
    from FoxitPDFSDKPython2 import *
else:
    from FoxitPDFSDKPython3 import *

...
# Make sure that SDK has already been initialized successfully.

ppt_file_path = "test.ppt"
output_path = "saved.pdf"

# Use default PowerPoint2PDFSettingData values.
ppt_convert_setting_data = PowerPoint2PDFSettingData()
if sys.platform == "linux":
  Convert.FromPowerPoint(ppt_file_path, "", output_path, engine_path, ppt_convert_setting_data)
else:
  Convert.FromPowerPoint(ppt_file_path, "", output_path, ppt_convert_setting_data, Convert.e_Office2PdfEngineMicrosoft)
js
const FSDK = require("@fuxinsoft/foxit-pdf-sdk-node");

...
// Make sure that SDK has already been initialized successfully.

let ppt_file_path = "test.pptx";
let output_path = "saved.pdf";

// Use default PowerPoint2PDFSettingData values.
let ppt_convert_setting_data = new FSDK.PowerPoint2PDFSettingData();
if (process.platform === 'win32') {
  FSDK.Convert.FromPowerPoint(ppt_file_path, "", output_path, ppt_convert_setting_data, FSDK.Convert.e_Office2PdfEngineMicrosoft);
} else {
  FSDK.Convert.FromPowerPoint(ppt_file_path, "", output_path, engine_path, ppt_convert_setting_data);
}
csharp
using foxit;
…
// Make sure that SDK has already been initialized successfully.

string ppt_file_path = "test.ppt";
string saved_pdf_path = "saved.pdf";

// Use default PowerPoint2PDFSettingData values.
using (foxit.addon.conversion.PowerPoint2PDFSettingData ppt_convert_setting_data = new foxit.addon.conversion.PowerPoint2PDFSettingData())
{
	foxit.addon.conversion.Convert.FromPowerPoint(ppt_file_path, "", saved_pdf_path, ppt_convert_setting_data, foxit.addon.conversion.Convert.e_Office2PdfEngineMicrosoft);
}
go
import (
. "foxit.com/fsdk"
“fmt”
“runtime”
) 
...
# Make sure that SDK has already been initialized successfully.

ppt_file_path := "test.ppt"
output_path := "saved.pdf"

# Use default PowerPoint2PDFSettingData values.
ppt_convert_setting_data := NewPowerPoint2PDFSettingData()
if runtime.GOOS == "linux"{
  ConvertFromPowerPoint(ppt_file_path, "", output_path, engine_path, ppt_convert_setting_data)
}
else{
  ConvertFromPowerPoint(ppt_file_path, "", output_path, ppt_convert_setting_data, e_Office2PdfEngineMicrosoft)
}