'Convert Doc'

Document Conversion Tool

File conversion for PDF, DOC, TXT, RTF, HTML...

Fast Software

'Convert Doc' has been optimized for rapid conversions. It also allows for the saving and restoring of 'conversion jobs'. A 'conversion job' is one or more conversion tasks. From simple to complex it can quickly recall past work. 

C:\>Working sample.bat files
   are installed for quick
   testing and customization.



Powerful Command Line

Command line capability is fundamental to ALL of our software tools. Demo batch files are installed ready for testing and modification. We are always here to help you implement our software.

Easy to Use
 File Conversion Features

Moving or deleting files while converting documents is no problem at all. Easy, unattended conversion of whole folders...you bet. 

'Convert Doc' Document Conversion Tool

'Convert Doc' File Conversion Features

If you have a big or repetitive document conversion job, 'Convert Doc' has numerous features and some specialized processes to assist. Such as:


Conversion Tool Extras
  • Quickly convert files into the formats you need. Enjoy fast conversion of PDF, DOC, DOCX, RTF, HTML, TXT and other files.
  • MS Word not required. Acrobat not required
  • Move or delete files after processing
  • Convert into file formats using our own fast conversion or Microsoft Word’s conversion algorithm.
  • Automate batch document conversions from the command line or with the COM/ActiveX interface.
  • Schedule unattended conversion jobs at regular intervals (time or calendar based).
  • Save and restore complex conversion configurations.
  • Process files with special requirements such as concatenation (appending), removing extra lines, and adding search and replace strings.
  • Adapt our document conversion program for most languages.
  • Stop and resume batches at a later time.
  • Launch (Run) a third party program from 'Convert Doc'

PDF Conversion

PDF File Conversion Features

More info on specific PDF file conversions

Word Conversion

Word File Conversion Features
  • Specify:
    • Enforce page and document settings
    • Enforce paragraph, font and image quality settings
    • Embed images into output file
    • Optimize for speed or memory usage.
    • Passwords if required
  • Convert DOC/DOCX files to/from PDF/DOC/DOCX/TXT/HTML/RTF without needing anything else to be installed.

More info on specific Word file conversions

Special Promotion: Buy 'Convert Doc' and get 'Convert XLS','Convert Image' and 'Convert PowerPoint' free!

Need a File Conversion Tool?

Introducing 'Convert Doc': The Ultimate File Conversion Solution!

Are you tired of dealing with compatibility issues when it comes to document formats? Do you wish there was an easy and efficient way to convert your files without the hassle? Look no further than Convert Doc, the revolutionary software designed to simplify document conversion processes!

'Convert Doc' is your one-stop solution for converting documents to and from multiple popular formats, including PDF, Word, RTF, TXT, and HTML. With its intuitive interface and powerful conversion engine, this software ensures that you can effortlessly transform your files into the format you need, saving you valuable time and effort.

Here's why 'Convert Doc' stands out from the competition:

1. Versatile and Comprehensive Conversion: Whether you're dealing with PDFs, Word documents, rich text files, plain text files, or HTML documents, 'Convert Doc' has got you covered. Seamlessly switch between different formats, enabling you to work with any type of file without limitations.

2. Command Line Efficiency: We understand the importance of automation and efficiency in your workflow. 'Convert Doc' offers a convenient command line interface, allowing you to integrate the conversion functionality directly into your scripts or workflows. Say goodbye to manual conversions and unleash the power of automation!

3. User-Friendly Interface: We've designed 'Convert Doc' with simplicity in mind. The user-friendly interface ensures that even non-technical users can convert their documents effortlessly. Just a few clicks, and you're done!

4. Superior Conversion Accuracy: With 'Convert Doc', you can expect exceptional accuracy during the conversion process. Fonts, formatting, tables, images, and other elements are faithfully preserved, ensuring that the converted document looks exactly like the original, regardless of the format.

5. Lightning-Fast Performance: Time is money, and we value your time. 'Convert Doc' harnesses the latest technology to provide lightning-fast conversion speeds, allowing you to convert large batches of files in no time. Boost your productivity and focus on what truly matters!

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7. Continuous Updates and Support: Our dedicated team is committed to providing you with the best possible experience. Expect regular updates, feature enhancements, and prompt customer support whenever you need assistance. We're here to ensure that your document conversion needs are met, every step of the way.

Discover the ease and efficiency of document conversion with 'Convert Doc'. Streamline your workflow, eliminate compatibility issues, and experience the power of seamless file conversion like never before.

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Convert Files by Command Line

What is the command line? The command line is one of the most widely known, accepted and implemented methods for allowing one software app to initiate another app. That's why we've made it our goal to make all of our software command line able.

Automate document conversions with the 'Convert Doc' command line using:

  • Simple bat files
  • Windows built in scheduler
  • 'Convert Doc's built in scheduler
  • Third party apps that have command line interfaces

Examples of Command Line Execution 
Need to convert files? Download and Try It (Free)!

NOTE: If you are converting Excel files we have tools for that also. For example 'Convert XLS'.  Also, if you need to convert a document to Excel combine 'Convert Doc' with 'Text To Excel Wizard.'
Need to convert PowerPoint files? Yes, we have a specific tool for that also.

Although we'll discuss the use of the command line here, it's only to give you a taste. For the full, accurate, and up to date information see the 'Convert Doc' command line documentation. There you will also find a full list of examples and how to troubleshoot.

NOTE: After installation, you can find several simple batch (*.bat) files for quick and easy usage by going to Start\All Programs\Convert Doc\Example Batch Files. These will work without modification provided the installation was in the default folder. Email us at  if you have any questions or need additional examples. We will get you up and running fast!

There are two approaches to using the command line:

  • Specify one or more conversion tasks in a 'Conversion Job'
  • Specify a single conversion task in detail

Specifying a Conversion Job

A 'Conversion Job' is easily built using the 'Convert Doc' graphical user interface. All the details of the job are saved in a single conversion job file (e.g. 'c:\myjobs\Do-Multiple-File-Conversion.SII). Specifying a conversion job file with the command line is done by using the /J switch. You can have hundreds or thousands of tasks specified in the conversion job file, all of which will get executed in one fell swoop. The syntax for specifying a Conversion Job  is:

ConvertDoc /J{ConversionJobFile}  [/V] [/L{LogFile}] [/B{LogToJobFile}]

Items above enclosed in square brackets '[ ]' are optional, all other 'switches' are required.  Therefore /J should always be specified on the command line.


To run the 'Conversion Job' specified by "C:\MyJobs\ApplesOranges.SII," type the following in at the 'Command Prompt':

 ConvertDoc /J"C:\MyJobs\ApplesOranges.SII"

You can include or exclude spaces between switches and parameters. For example, "/C6" is the same as "/C  6". 

For long file names you may be required to use double quotes. For example
/S"C:\Program Files\MyApp\MyDoc.DOC".

Specifying a 'Conversion Task'

Specifying a single conversion task requires a bit more effort, but does not require the prior creation of a 'Conversion Job' file. The documentation contains a comprehensive list of examples that are well organized. Therefore specifying a conversion task from the command line is matter of finding your specific case and modifying it for your needs. Again, please see the documentation for a complete list of examples. Below you'll find the most often used examples:

The syntax for specifying a conversion task is:

ConvertDoc /S{Input File(s)} /F# /T{Output File(s)} /C# [/M#] [/G] [/V] [/R] [/L{LogFile}] [/B{LogToJobFile}] [/I{override initialization file}] [/E] [/A#] [/W{Password}]

Items enclosed in square brackets "[ ]" are optional, all other 'switches' are required. Therefore /S, /T, /C# should always be specified on the command line. There is one exception however, and that is when /G is specified, the /T switch is not necessary.

You can include or exclude spaces between switches and parameters. For example, "/C6" is the same as "/C 6".

Command line switches are case sensitive, therefore /V is valid and /v is not.

For long file names (e.g. a path or file name with spaces in it, or longer than 8.3 format) you are required to use double quotes. For example:

ConvertDoc.exe /S"C:\Input Folder\My App\MyFile.PDF" /T "C:\Output Folder\My App\MyFile.DOC" /C3 /M3 /V

Command Line Switch Specification

Full descriptions for each switch are shown below in order of importance:

Switch Meaning


Specify a 'Conversion Job' file (*.SII) to be done. You must have previously created a 'Conversion Job' file to use this switch.


Input File(s) to be converted.

A single file including its complete path can be specified for a one file conversion. For example:


If specifying a single file, make sure that the /T switch also specifies a single output file. For example:


You can specify whole directories by using the wildcard syntax. For example:


If specifying a whole directory, make sure the /T also specifies a whole directory. For example:


See also /R for subfolders.

/F #

File type of the input file. Please see File Type Constants table for valid values.

This switch is only required when using the Convert Doc (/M2) conversion method. It will be ignored otherwise. When using MS Word (/M1) it you can use any file type that MS Word recognizes. When using PDF Conversion [M3], always use a PDF file as the input file type.


Output File(s) to be created. A fully qualified path surrounded by double quotes is recommended. Date/Time fields can be used.

See the /S{File} switch description for proper use of the /T{File} switch when specifying a single or multiple files to convert.

This switch is ignored if the /G Switch is used.

/C #

Specifies what the output file type is. You must supply a number for the # symbol. For all possible numbers see File Type Constants.


Save files to the same location as the input folder(s). Use this instead of /T to place the converted files in the same folder as the input file. Cannot be used when converting a single file. For a single file use the /T switch instead.

Files will be saved with the same name as the input but with a different file extension as specified by the /C# switch.

You cannot specify a different name for the output file when using the /G switch.


Verbose mode. Specify this switch to display a message box indicating how the conversion went. See also /L.


Recursive sub folders. Seek out and do all files found in the sub-folders specified in the /S switch.  You may add this switch if you are processing whole folders of files. See /S and /G for more details on selecting whole directories to be converted.


Specifies the Conversion Method to be used. The following values are valid:

1 = MS Word

2 = Convert Doc (Default value)

3 = PDF File Conversion

This switch is not required if you are using the Convert Doc method, as that is the default.

See Conversion Methods for additional details for selecting this value.


Log file path and name (e.g. /L"D:\MyLogs\MoreInfo.LOG"). If this switch is specified a log file with the given path and name will be created and the results of the conversion will be written to it. See also /V.


Save the Log file as a 'Conversion Job' ONLY IF ERRORS OCCURRED. This is useful as the files that had problems can be done at a later time, perhaps with a different method. /B differs from /L, since the file generated with /B will not include extraneous comments not allowed in a 'Conversion Job' file. Use the *.SII file type extension so it can be loaded as a job.


Very Fast PDF to TXT or PDF to HTM conversion. Use this for super-fast conversions. It will work on most PDFs but may be problematic for PDFs created with lesser known PDF editors.


Use a specified (and not the default) initialization file for 'Convert Doc'. This allows you to be able to specify all settings that are in the user interface from the command line, which is especially useful for those few items not available through specific command line switches. The default initialization file created by the program while running the user interface can be used as a template (see below to locate the file). You can modify the default ini file created by the program and rename it to whatever you want for use in the command line.

Note: You can find the default ini file created by running the user interface. From theHelp menu,select About . Double click the Softinterface logo. Then, in Notepad, from the File menu, select Save as to see where it is on your system.

[/W{PDF File Open Password}]

When converting TO a PDF file, you can specify a File Open password using this switch. The Example below makes the word Apples the password to open the newly created PDF file:

ConvertDoc.EXE /S "c:\input files\tryme.doc" /T "c:\input files\tryme.pdf" /F9 /C12 /M2 /V /WApples


Specify an ERRORLEVEL (return code) upon closing the application. See also /L and /V.

The following ERRORLEVELs are possible:

0 = Success

-1 = Shareware expired

-3 = Missing required command line argument(s)

-4 = Some error occurred during the processing, create a log or use verbose switch for details


Advanced PDF to RTF options (General Section of Convert Doc version 4.14 or earlier). The number used in this parameter is used to specify several things. You may use this switch as many times as you wish. Not specifying a particular option will cause it to default to what was last set by the user in the application (e.g. while not running in the command line).


  1 = Single Column Layout

  2 = Multi-Column Layout

  3 = Pleading


  5 = Preserve Layout Using Spaces and Tabs

  6 = Detect Headers TRUE

  7 = Detect Headers FALSE

  8 = Text Flow

  9 = Use TEXT BOXES for EXACT placement

10 = Merge Text TRUE

11 = Merge Text FALSE

12 = Adjust Spacing TRUE

13 = Adjust Spacing FALSE


20 = Include Text TRUE

21 = Include Text FALSE

22 = Merge Paragraph TRUE

23 = Merge Paragraph FALSE

24 = Shrink Fonts TRUE

25 = Shrink Fonts FALSE

26 = Adjust Font Names TRUE

27 = Adjust Font Names FALSE

28 = Extract Hyperlinks TRUE

29 = Extract Hyperlinks FALSE

For example the line below converts a PDF file to RTF using the single column layout with Text Boxes for exact position, and Merges Text.

ConvertDoc.EXE /SE:\Delme\simple.pdf /Te:\delme\Tryme.RTF /M3 /C3 /A1 /A9 /A10

Table: All Command Line Switches

File Type Constants Specification

This section is a reference for those specifying the /F# and /C# input and output file types from the command line. The file type constants used are dependent on the conversion method being used (see the section on conversion methods for more information).

MS Word Conversion Method (/M1)

If using the MS Word conversion method, the table below is valid for the Output file type constant (/C# switch). Other file type constants may appear when selecting the "OTHER FILE TYPES" from the Convert to File Format selection within the software's user interface.

File Type Constant File Type Minimum Version


Word Document (*.DOC)


Word Document (*.DOCX) XML format

Office 2007


DOS Text (*.TXT)


DOS Text - Line Breaks (*.TXT)


Encoded Text (*.TXT)




Rich Text Format (RTF)




Text Line Breaks


Unicode Text


Single File Web Page (*.MHT, *.MHTML)

Office 2003


Web Page Filtered (*.HTM, *.HTML)

Office 2003


XML Document

Office 2003


Word Macro-enabled Document (*.DOCM)

Office 2007


Word default document 'SAVE AS' file format. For Microsoft Office Word 2007 this is DOCX, but can be modified by a user.

Office 2007


PDF (requires Microsoft Add-in "Microsoft Save as PDF or XPS")

Office 2007


XPS (requires Microsoft Add-in "Microsoft Save as PDF or XPS")

Office 2007


Word XML Document (*.XML)

Office 2007


Word XML Macro Enabled (*.XML)

Office 2007

Table: File Type Constants for use with the /M1and /C# command line switches

Convert Doc Conversion Method (/M2)

If using the Convert Doc conversion method, the table below is valid for specifying the /C# and /F# command line arguments. This is the default conversion method.

File Type Constant File Type






RTF Rich Text Format


Unicode Text


Word Document (*.DOC)


PDF format


Word Document (*.DOCX) XML format


PDF/A-1b, OSI standard

Table: File Type Constants for use with the /M2 /F# and /C# command line switches

* = Cannot use PDF as an input file type (/F#).See table below for converting from PDF files.

PDF File Conversion Method (/M3)

If you are using the PDF File Conversion method, the table below is valid for specifying the /C# command line argument. /F# (input file type) is not required as it is assumed to be a PDF file.

File Type Constant File Type






RTF/DOC (Rich Text File/ MS Word file)



Table: File Type Constants for use with the /M3 and /C# command line switches

Our Customers

Document Conversion

"Great customer service, prompt attention to our requirements and lightening speed development has been my experience with the staff at Softinterface Inc. "..."For several months now, their product has been working in mission critical environment flawlessly. With a few enhancement requests that were completed and delivered the same day they were asked for"
Bruce King, IBM Canada, Toronto, Ontario

"Thanks. The product is terrific. It did exactly what I needed it to do. I had 1321 text files I needed to convert to Word. It did it in about 6 minutes." Cullen an Dykman

Document Conversion Tool Customer

Adobe Systems Inc. Chooses 'Convert Doc'.  A custom site license has been signed by Adobe allowing them to install 'Convert Doc' on their servers.  They will be using it specifically to do Doc to HTML conversions. "We look forward to using your product and potentially working together in the future",
, Adobe

"ConvertDoc is a GREAT utility for converting documents from one format to another. We have a very specific requirement of converting a very complicated PDF to a Word Doc that needs to meet very specific requirements of a government agency.

Using Google search we have tried nearly every conversion product listed, well over 10 of them. 8 failed miserably, 1 came kind of close, ConvertDoc was the only one that handled everything and performed flawlessly."

Glenn Rathke, irosolutions.com

Document Conversion Tool Customer

"Absolutely awesome. The product worked beyond what we expected. I am going to recommend the full version to our web team. "
formally EDS - BPO US Request Management.

"I've pretty much convinced everyone that it's just about the coolest thing going. I'll admit--I didn't even read the instructions and I was still able to convert everything I needed in just a few seconds. Fantastic. There are other products out there, and some of them are cheaper, but none of them work as elegantly as yours."   National College of Business & Technology


Years of 'Convert Doc' development. Time tested for your demanding requirements.


Non-profit organizations assisted. Are you a member of one? Let us know, we would like to help.


Customers in 110 countries. 1 in 3 Fortune 500 companies use our software.
'Convert Doc' is compatible with Office 97 through Office 2016. We've been at it a long time!

Latest Changes to 'Convert Doc'

18.10 (1/3/2023)

  • Application load time reduced. The number of input/output files within the drop down list box was reduced from 10 to 6 for faster load times. Scheduling form job source most recently used list was reduced from 20 to 10.

18.00 (1/3/2023)

  • Office 2022 compatibility completed. Note: Office 2022 was released at the same time as Windows 11.

17.60 (12/07/2022)

  • Documentation updated for accuracy and completeness.

See complete change history of 'Convert Doc'.