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Coolutils Converter X

Convert any file (PDF, DOC, XLS, HTML, TXT, MSG, EML, images and 30+ formats) to PDF, DOC, TIFF, XPS on Windows servers — one binary, no external runtimes.

Coolutils Converter X — Universal Any-to-PDF/DOC/TIFF/XPS Server SDK with ActiveX, DLL & Command Line

Windows
2000/2003/Vista
7/8/10/11
and
2012/2016 / 2019/2022 Server
and
Docker / Citrix / Wine

Coolutils Converter X is a universal server-side SDK that takes 30+ input file types — PDF, DOCX, XLSX, HTML, MHT, EML, MSG, TXT, RTF, EPS, XPS, PCL, images, and more — and produces PDF, DOC, TIFF, or XPS output. One binary replaces a stack of format-specific libraries; no Microsoft Office, Adobe Acrobat, Outlook, or other external runtimes required on the server. It runs silent: no GUI, no dialogs, no popups. Coolutils Converter X ships with both a command-line binary and an ActiveX/COM interface, so it drops into ASP, PHP, .NET, Python, Ruby, Java, and any other COM-aware backend.

Full input format coverage:

  • PDF / page formats: PDF, EPS, XPS, PCL
  • HTML family: HTML, XHTML, MHT
  • Office documents: DOC, DOCX, DOCM, RTF, TXT, ODT
  • Spreadsheets: XLS, XLSX, XLSM, XLT, ODS
  • Email: MSG (Outlook), EML (RFC-822)
  • Images: TIFF, PNG, JPG, BMP, GIF

Output formats: PDF (with AES-256 encryption, password protection, per-permission flags, X.509 digital signatures, PDF/A archival profile), DOC, TIFF (single or multi-page), XPS. Bates-style stamping, custom headers/footers (date, page count, confidentiality stamps, company logo), and watermarks apply uniformly across every input format — the same flags work whether the source is a DOCX, an EML, a JPEG, or an HTML page.

Multi-user friendly: install once on your Windows server and expose conversion as a service to your entire network or as a web endpoint to external customers. Multithreaded engine processes batches at maximum speed. Compatible with IIS, Docker, Citrix, and Wine.

Coolutils Converter X is the right pick when your application accepts arbitrary user uploads — you don't have to maintain a separate codepath for every format. One Convert(src, dest, params) call handles the lot. Try it for free (30 days trial period, no limitations) and find out that it is really worth its money.

Some of the currently supported input-to-output combinations:
    Documents to PDF
  • DOC / DOCX to PDF
  • HTML / MHT to PDF
  • EML / MSG to PDF
  • RTF / TXT to PDF
    Spreadsheets / images
  • XLS / XLSX to PDF / TIFF
  • JPG / PNG / BMP / TIFF to PDF
  • EPS / XPS / PCL to PDF
  • Multi-page TIFF combine / split
    Archive / signed
  • Any to PDF/A
  • Any to digitally-signed PDF
  • Any to XPS / DOC

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(includes 30 day FREE trial)

Buy License

(only $2400.00)

 
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Examples of Coolutils Converter X

Convert any file with Coolutils Converter X and .NET


string src  = @"C:\test\Source.docx";
string dest = @"C:\test\Dest.pdf";

var cnv = new CoolConverterX();
cnv.Convert(src, dest, "-cPDF -log c:\\test\\Cool.log");

if (!string.IsNullOrEmpty(cnv.ErrorMessage))
    throw new Exception(cnv.ErrorMessage);

Convert any file on web servers with Coolutils Converter X

public static class Function1
    {
        [FunctionName("Function1")]
        public static async Task Run(
            [HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequest req,
            ILogger log)
        {
            StringBuilder sbLogs = new StringBuilder();
            sbLogs.AppendLine("started...");
            try
            {
                ProcessStartInfo startInfo = new ProcessStartInfo();
                startInfo.CreateNoWindow = true;
                startInfo.UseShellExecute = false;
                var assemblyDirectoryPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
                assemblyDirectoryPath = assemblyDirectoryPath.Substring(0, assemblyDirectoryPath.Length - 4);

                var executablePath = $@"{assemblyDirectoryPath}\Converter\CoolConverterX.exe";
                sbLogs.AppendLine(executablePath + "...");
                var srcPath = $@"{assemblyDirectoryPath}\src\sample.docx";
                var outPath = Path.GetTempFileName() + ".pdf";
                startInfo.FileName = executablePath;

                if (File.Exists(outPath))
                {
                    File.Delete(outPath);
                }

                if (File.Exists(executablePath) && File.Exists(srcPath))
                {
                    sbLogs.AppendLine("files exists...");
                }
                else
                    sbLogs.AppendLine("EXE & source files NOT exists...");
                startInfo.WindowStyle = ProcessWindowStyle.Hidden;
                startInfo.Arguments = $"\"{srcPath}\" \"{outPath}\" -cPDF";
                using (Process exeProcess = Process.Start(startInfo))
                {
                    sbLogs.AppendLine($"wait...{DateTime.Now.ToString()}");
                    exeProcess.WaitForExit();
                    sbLogs.AppendLine($"complete...{DateTime.Now.ToString()}");
                }
                sbLogs.AppendLine("Conversion complete.");
            }
            catch (Exception ex)
            {
                sbLogs.AppendLine(ex.ToString());
            }

            return new OkObjectResult(sbLogs);
        }
    }
More information about Azure Functions.

Convert any file on web servers with Coolutils Converter X

dim C
Set C=CreateObject("CoolConverter.CoolConverterX")
C.Convert "c:\test\source.docx", "c:\test\dest.pdf", "-cPDF -log c:\Cool.log"
Response.Write C.ErrorMessage
set C = nothing

Stream the resulting PDF directly from ASP

dim C
Set C=CreateObject("CoolConverter.CoolConverterX")
Response.Clear
Response.AddHeader "Content-Type", "binary/octet-stream"
Response.AddHeader "Content-Disposition", "attachment; filename=test.pdf"
Response.BinaryWrite C.ConvertToStream("C:\www\ASP\Source.docx", "C:\www\ASP", "-cpdf -log c:\Cool.log")
set C = nothing

Convert any file with PHP and Coolutils Converter X

$src="C:\\test\\test.docx";
$dest="C:\\test\\test.pdf";
if (file_exists($dest)) unlink($dest);
$c= new COM("CoolConverter.CoolConverterX");
$c->convert($src,$dest, "-cPDF -log c:\\Cool.log");
if (file_exists($dest)) echo "OK"; else echo "fail:".$c->ErrorMessage;

Convert any file with Coolutils Converter X and Ruby

require 'win32ole'
c = WIN32OLE.new('CoolConverter.CoolConverterX')

src = "C:\\test\\test.docx"
dest = "C:\\test\\test.pdf"

c.convert(src, dest, "-cPDF -log c:\\test\\Cool.log")

if not File.exist?(dest)
  puts c.ErrorMessage
end

Convert any file with Coolutils Converter X and Python

import win32com.client
import os.path

c = win32com.client.Dispatch("CoolConverter.CoolConverterX")

src  = "C:\\test\\test.docx"
dest = "C:\\test\\test.pdf"

c.convert(src, dest, "-cPDF -log c:\\test\\Cool.log")

if not os.path.exists(dest):
    print(c.ErrorMessage)

Convert any file with Pascal and Coolutils Converter X

uses Dialogs, Vcl.OleAuto;

var
  c: OleVariant;
begin
  c := CreateOleObject('CoolConverter.CoolConverterX');
  c.Convert('c:\test\source.docx', 'c:\test\dest.pdf', '-cPDF -log c:\test\Cool.log');
  if c.ErrorMessage <> '' then
    ShowMessage(c.ErrorMessage);
end;

Convert any file on web servers with Coolutils Converter X

var c = new ActiveXObject("CoolConverter.CoolConverterX");
c.Convert("C:\\test\\source.docx", "C:\\test\\dest.pdf", "-cPDF");
if (c.ErrorMessage != "")
  alert(c.ErrorMessage)

Convert any file with Coolutils Converter X and Perl

use Win32::OLE;

my $src  = "C:\\test\\test.docx";
my $dest = "C:\\test\\test.pdf";

my $c = CreateObject Win32::OLE 'CoolConverter.CoolConverterX';
$c->convert($src, $dest, "-cPDF -log c:\\test\\Cool.log");
print $c->ErrorMessage if -e $dest;

quote

Coolutils Converter X Customer Reviews 2026

Rate It
Rated 4.7/5 based on customer reviews
5 Star

"Thank you for Coolutils Converter X. It handles large bulk jobs on our server and we are happy with the performance."

5 Star Ji Prasertcharoensuk
IT Lead

"I use Coolutils Converter X to convert PDF, DOC, and JPG scans into PDF/A for our electronic document system. From the customer's standpoint it's pretty intuitive."

5 Star Tom Cioni
GammaView LLC

"Customers upload arbitrary files: DOCX, XLSX, MSG, JPEG, HTML scrapes, even PCL print spool. We need one PDF per upload regardless of source format. Coolutils Converter X is the one binary that handles every type with the same Convert() call. We replaced a stack of three Aspose libraries plus an Office-Interop fallback. Five years in production, throughput around 8,000 mixed-type files per hour on our hardware."

5 Star Maxim G.
Senior Backend Developer at a document-management SaaS

"We archive customer correspondence in mixed formats: emails as MSG, contracts as DOCX, scans as TIFF, web printouts as MHT. Everything has to land in our DMS as digitally-signed PDF/A. -pdfa plus -PFXFile/-PFXPass works uniformly across every input format, which means our pipeline is one binary call regardless of source. Headless on Windows Server Core, no Office, no Acrobat, no surprises."

5 Star Bridget T.
DevOps Engineer at a regulatory-archive provider

"Bundled Coolutils Converter X into our intake-portal product under the Royalty-Free License. The one-time per-project fee was a fraction of what licensing five separate Aspose products would have cost. Our installer ships and registers the ActiveX, our app calls it directly, end users see only our UI. The 32-bit ActiveX limitation cost us a couple of days of pipeline rework, but support was responsive when we asked about workarounds."

4 Star Henrique A.
Independent Software Vendor


Command-Line Examples

Coolutils Converter X ships with CoolUtilsConverterX.exe, a console binary you can drive from scripts, scheduled tasks, CI runners, or any backend service. Output formats are PDF, TIFF, DOC, and XPS; input is auto-detected across the formats supported by the GUI. The recipes below cover the cases we hear about most often from SDK customers.

1. Convert a single file to PDF

The smallest possible call — one source, one destination, one target format.

CoolUtilsConverterX.exe "C:\inbox\report.docx" "C:\out\report.pdf" -cPDF

2. Batch a folder by mask

Process every matching file in a folder. The mask can mix formats — CoolutilsConverterX accepts the full input list, so a single run can swallow Word, HTML, RTF, image, and email files together.

CoolUtilsConverterX.exe "C:\inbox\*.*" "C:\out\" -cPDF

3. Detect input format by signature, not by extension

Upload pipelines often hand you files with wrong or missing extensions. -filesig tells the converter to look at the file header instead of the name.

CoolUtilsConverterX.exe "C:\uploads\*.*" "C:\out\" -cPDF -filesig

4. Multi-threaded batch for server-grade throughput

On a multi-core box, parallelise the queue. -threads 0 picks the optimal thread count automatically; specify a number to cap it.

CoolUtilsConverterX.exe "C:\inbox\*.*" "C:\out\" -cPDF -threads 0

Combine with -IgnoreInvalidSource if you'd rather skip a bad file than abort the whole run.

5. Queue-style processing: move successes and failures into separate folders

The standard backend pattern: a watcher drops files into inbox, the converter clears it, processed files land in done, files it couldn't handle land in quarantine for review.

CoolUtilsConverterX.exe "C:\inbox\*.*" "C:\out\" -cPDF -msuccess "C:\done" -merror "C:\quarantine" -threads 0

6. Combine many files into one PDF with a table of contents

-combine merges every input into a single PDF; -dco TOC generates a clickable table of contents from the source filenames.

CoolUtilsConverterX.exe "C:\reports\*.*" "C:\out\compendium.pdf" -cPDF -combine -dco TOC

Add -dco EveryFileNewPage to ensure each source starts on a fresh page.

7. Cap merged PDF size by splitting on a limit

For email attachment caps or storage tiers, set a size ceiling and the converter will produce as many sequential PDFs as needed.

CoolUtilsConverterX.exe "C:\reports\*.*" "C:\out\bundle.pdf" -cPDF -combine -pdflimit 10485760

The number is bytes — 10485760 is 10 MB. Output filenames get auto-incremented.

8. PDF/A archival output with full metadata

For records-management workflows requiring ISO 19005-compliant PDF/A. -pdfaver 2u targets PDF/A-2u; supported variants are 1b, 2b, 2u, 3b, 3u.

CoolUtilsConverterX.exe "C:\inbox\*.*" "C:\archive\" -cPDF -pdfa -pdfaver 2u -PDFAuthor "Acme Corp" -PDFTitle "Q3 Records" -PDFSubject "Records retention 2026" -FontEmbedding Full

9. AES-256 password-protected PDF with restricted permissions

Standard for sending sensitive documents to third parties: an owner password locks editing/printing rights, a user password gates opening the file, and AES-256 encryption replaces the legacy RC4 default.

CoolUtilsConverterX.exe "C:\inbox\*.*" "C:\out\" -cPDF -mp "owner-pwd" -up "user-pwd" -perm Print -perm Copy -EncryptStrength es256AES

Pass -perm multiple times to grant a combination of Print, Copy, Modify, Annotation, FormFill, HighResPrint.

10. Date-stamped output folder with detailed logging

The destination accepts <DATE> and <TIME> macros, so each run writes to its own bucket without scripting on top.

CoolUtilsConverterX.exe "C:\inbox\*.*" "C:\out\<DATE>_<TIME:hhmm>\" -cPDF -log "C:\logs\cucx.log" -verbosity detail -logmode append

For repeatable parameter sets across cron jobs, lift the flags into a config file and pass -optionfile "C:\configs\nightly.opt" instead.

Download Now!

Updated Fri, 01 May 2026

Buy License

(only $2400.00)



Frequently Asked Questions About Coolutils Converter X ▼

No. Coolutils Converter X has its own parsers and rendering engines for every supported format. You do not need Microsoft Word, Excel, Outlook, Office Interop, Adobe Acrobat, Foxit, headless Chrome, wkhtmltopdf, or any other external runtime on the conversion server. This is the main reason customers move to Coolutils Converter X from multi-vendor stacks (Aspose.Words + Aspose.Cells + Aspose.PDF, or Office Automation + iText + ImageMagick) — one license, one binary, one COM interface.
Input (30+): PDF, EPS, XPS, PCL, HTML, XHTML, MHT, DOC, DOCX, DOCM, RTF, TXT, ODT, XLS, XLSX, XLSM, XLT, ODS, MSG, EML, TIFF, PNG, JPG, BMP, GIF, and more. Output: PDF (with AES-256 encryption, password protection, per-permission flags, X.509 digital signatures, PDF/A archival profile), DOC, TIFF (single or multi-page), XPS. Same flag set across every input.
Coolutils Converter X exposes a COM/ActiveX interface, so any COM-aware language can call it directly: new COM("CoolConverter.CoolConverterX") in PHP, new CoolConverterX() in .NET, win32com.client.Dispatch("CoolConverter.CoolConverterX") in Python, WIN32OLE.new('CoolConverter.CoolConverterX') in Ruby. Alternatively, the CoolConverterX.exe command-line binary can be invoked from any process, scheduler, or shell script. Direct streaming via ConvertToStream is also available for ASP/PHP web responses.
Three reasons. (1) Cost: one license replaces three to five separate format libraries (Word, Excel, Email, PDF, image). (2) Maintenance: one binary, one update channel, one ProgID to register on every conversion VM. (3) Consistency: the same Bates-stamping, watermarking, encryption, and header/footer flags work across every input format, so your application code has one codepath instead of six.
Yes. Because the converter is a regular Windows binary with a COM interface, it runs anywhere Windows runs: IIS application pools, Windows containers, Azure App Service or Azure Functions on the Windows runtime, AWS EC2 Windows instances, and on-premises Windows Server. Note: the ActiveX component is 32-bit only, so configure your IIS application pool or .NET runtime to 32-bit when calling via COM. The command-line binary works on 64-bit Windows without restrictions.
Yes. -pdfa enables ISO 19005 (PDF/A) compliance. -PFXFile "C:\certs\acme.pfx" -PFXPass "cert-pwd" -SignLoc -SignCon -SignRes attaches an X.509 digital signature with metadata. Watermarks (text or image) are added with -WatermarkText or -WatermarkImage; Bates header/footer stamping with -HeadText/-FootText using [page], [date], [time] placeholders. Same flags work for any input format.
Point the binary at a wildcard mask: CoolConverterX.exe "C:\inbox\*.*" "C:\out\" -cPDF. The converter detects each file's format from its extension and content, applies the right parser, and produces uniform PDF output. -Recurse walks subdirectories, -kfs mirrors folder structure on output, -list "queue.txt" reads a queue file, and -msuccess/-merror route processed and failed sources into separate folders for unattended worker pipelines.
Yes. The download is a fully functional 30-day trial with all 30+ input formats, all output formats, ActiveX, and command-line features unlocked — no credit card and no email required to start. After 30 days you decide whether to purchase. The license is one-time payment with lifetime updates and technical support. The Royalty-Free License variant covers redistribution inside your own product.
Download Now!

Updated Fri, 01 May 2026

Buy License

(only $2400.00)


Release Notes

  • 22 January 2026 Added support for extracting information from multiple types of corrupted documents.
  • 27 June 2025 Added support for QIF (Quicken Interchange Format) format
  • 06 May 2025 Added support for ASIC format
  • 15 January 2025 Added support for CBR and CBZ formats

Start working now!

Download free trial and convert your files in minutes.
No credit card or email required.

⬇ Download Free Trial Windows 7/8/10/11 • 162 MB
Pro Suite

Key Features Of Full Registered Version

  • Any to PDF, ANY to DOC, ANY to TIFF, Any to XPS
  • Supports even emails
  • Provides access via ActiveX interface for all legacy programming languages (Visual Basic 6 or Delphi) as well as scripting (i.e. VBscript).
  • Any language that supports Web Services including .NET (2.00, 3.5, 4.00), Ruby, PHP and Java is supported.
  • Stamps bates, adds page counters or your watermarks
  • Command line
  • ActiveX and Docker
  • Samples in PHP, C++, C#
  • Life-time license

System Requirements



List of apps with built-in API support

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