TXT Compression Overview

Aspose.ZIP for .NET provides a fully managed C# API for compressing TXT documents in server-side and desktop applications. It supports batch operations, stream I/O, and configurable compression settings for predictable outputs. This fits document workflows that need repeatable packaging. Package TXT content into ZIP, 7Zip, TAR, GZIP, and other archives without external tools, and secure output with password protection or AES encryption when needed. This approach fits automation in batch jobs, CI pipelines, and server-side processing tasks.

How to Compress TXT File Using C#

Use the Aspose.ZIP for .NET API to compress TXT files in C#. You can load inputs from disk or streams, create archive entries, and select ZIP, 7Zip, TAR, GZIP, or other output formats with control over compression level. Install the package from NuGet and reference it in your project, or use the Package Manager Console command below. The API then allows you to create archives, add files, and save the result with straightforward C# code. It works well for archiving document collections.


Command

  PM> Install-Package Aspose.ZIP



Install Aspose.ZIP, create an Archive instance, add TXT files, and save the result. The steps below summarize the standard TXT compression flow in C#.

Steps to Compress TXT Files in C#

Developers can easily compress TXT files programmatically with just a few lines of C# code using Aspose.ZIP for .NET.

  • Define the folder path that contains the TXT files.
  • Create an instance of the Archive class.
  • Using the Archive object, load each file by its full path using the CreateEntry method.
  • Call the Save() method and pass the output archive file name (full path) as a parameter.
  • The TXT files will be stored in a ZIP archive in the target folder without using any third-party zip, rar, or other compression tools.

System Requirements

Aspose.ZIP for .NET is supported on all major platforms and operating systems. Before running the example code, make sure your development environment meets the following prerequisites:

  • Microsoft Windows or any compatible OS capable of running .NET Framework, .NET Core, or modern .NET versions
  • A development environment such as Microsoft Visual Studio
  • Aspose.ZIP for .NET referenced in your project (install via NuGet or using the Download button above)


C# Example: Create a ZIP Archive from TXT Files

The snippet below shows the core API steps to compress a TXT file: create an Archive object, add the entry, and save the resulting ZIP.

Compress TXT file via .NET:

    var dir = "full directory path";
    using (var arch = new Archive())
    {
    arch.CreateEntry("filename.txt", dir+"file.txt");
    arch.Save(dir+"archived_result.zip");
    }



FAQ

Can I compress multiple TXT files into a single ZIP archive using C#

1. Yes. Aspose.ZIP for .NET allows you to load and compress multiple TXT files by adding each file as an entry to the Archive object. You can combine individual files, folders, or streams into a single ZIP archive through a straightforward C# workflow.

Does Aspose.ZIP for .NET reduce the original quality of TXT files?

2. No. Aspose.ZIP performs lossless compression, meaning that the content and quality of your TXT files remain unchanged. The library only reduces file size by applying efficient archive compression algorithms without altering the actual data inside the file.

Can I password-protect ZIP archives that contain TXT files?

3. Yes. The library supports password protection and AES encryption, allowing you to securely package sensitive TXT files. You can specify encryption settings when creating entries or during the archive-generation process.

Explore Other Aspose.Zip for .NET Features

Use the Aspose.Zip C# library to create, compress, protect, and extract archives in your .NET apps.

3DS (3D Sudio DOS Mesh)
3MF (3D Manufacturing Format)
AAC (Advanced Audio Coding)
AMF (Additive Manufacturing Format)
ASE (2D Animation File)
AVI (Audio Video Multimedia Container)
AZW (Digital Ebook Format)
AZW3 (Amazon Kindle Format 8)
BMP (Bitmap Image)
CDR (Vector Drawing Image)
CGM (Computer Graphics Metafile)
CHM (Microsoft HTML help file)
CMX (Corel Exchange Image)
CPP (C++ Source Code File)
CS (C# Source Code File)
CSPROJ (C# Project File)
CSV (Comma Separated Values)
DAE (Digital Asset Exchange)
DCM (Digital Image)
DGN (Drawing file)
DIB (Device Independent Bitmap)
DICOM (Digital Imaging & Communications)
DIF (Data Interchange Format)
DJVU (Graphics Format)
DNG (Digital Camera Image)
DOC (Microsoft Word Binary Format)
DOCM (Microsoft Word 2007 Marco File)
DOCX (Office 2007+ Words Document)
DOT (Microsoft Word Template Files)
DOTM (Microsoft Word 2007+ Template File)
DOTX (Microsoft Word Template File)
DWF (Design Web Format DWF)
DWG (Proprietary binary files)
DWT (AutoCAD drawing template file)
DXF (Drawing Interchange Format)
E00 (ESRI ArcInfo Interchange)
EMF (Enhanced Metafile Format)
EML (Outlook Email Messages)
EMLX (Apple EMLX Format)
EPS (Encapsulated PostScript Language)
EPUB (E-book Format)
EXIF (Exchangeable Image Format)
FB2 (FictionBook)
FBX (3D Format)
FILEGDB (ESRI File Geodatabase)
GEOJSON (JSON Based Format)
GIF (Graphical Interchange Format)
GLB (3D File Binary Representation)
GLTF (GL Transmission Format)
GML (Geography Markup Language)
GPX (GPS Exchange format)
HTM (Hypertext Markup Language)
HTML (Hyper Text Markup Language)
ICO (Microsoft Windows Icon)
ICS (iCalendar)
IFC (Industry Foundation Classes IFC file format)
J2K (Wavelet Compressed Image)
JP2 (JPEG 2000)
JPEG (JPEG Image)
JRXML (3D file)
JT (Jupiter Tessellation File)
KFX (Amazon Kindle Format 10)
KML (Keyhole Markup Language)
KMZ (KML Zipped)
M4V (Apple Video Container)
MBOX (Electronic Mail Messages)
MD (Markdown Language)
MHTML (Web Page Archive Format)
MOBI (Open Ebook Format)
MOV (QuickTime Format)
MP3 (Digitally Encoded File)
MPP (Microsoft Project Data File)
MPT (Microsoft Project Template Files)
MPX (Microsoft Exchange File Format)
MSG (Outlook & Exchange Format)
OBJ (3D File Format)
ODG (Apache OpenOffice Draw Format)
ODP (OpenDocument Presentation Format)
ODS (OpenDocument Spreadsheet File)
ODT (OpenDocument Text File Format)
OFT (Outlook Email Templates)
ONETOC2 (OneNote Table of Contents)
OSM (Open Street Map)
OST (Offline Storage Files)
OTG (OpenDocument Standard)
OTP (OpenDocument Standard Format)
OTT (OpenDocument Standard Format)
PCL (Printer Command Language)
PDF (Portable Document Format)
PDFA (Portable Document Format / A)
PDFE (PDF Based Engineering Files)
PDFUA (PDF/UA Standard)
PDFVT (PDF/VT ISO 16612-2)
PDFX (PDF/X ISO 15930)
PLT (Vector-based plotter file)
PLY (Polygon File Format)
PNG (Portable Network Graphics)
POT (Microsoft PowerPoint Template Files)
POTM (Microsoft PowerPoint Template File)
POTX (Microsoft PowerPoint Template Presentation)
PPS (PowerPoint Slide Show)
PPSM (Macro-enabled Slide Show)
PPSX (PowerPoint Slide Show)
PPT (Microsoft PowerPoint 97-2003)
PPTM (Macro-enabled Presentation File)
PPTX (Open XML presentation Format)
PSB (Adobe Photoshop File)
PSD (Adobe Photoshop Native Format)
PST (Outlook Personal Storage Files)
RTF (Rich Text Format)
RVM (AVEVA Plant Design Model)
SHP (ESRI Shapefile)
SLN (Visual Studio Solution File)
STL (Interchangeable 3D Surface Geometry)
SVG (Scalable Vector Graphics)
SWF (SWF Format)
TEX (LaTeX Output Text)
TIFF (Tagged Image Format)
TNEF (Transport Neutral Encapsulation Format)
TSV (Tab-Separated Values)
TXT (Text Document)
U3D (Universal 3D)
VB (Visual Basic Source Code File)
VCF (Virtual Card Format)
VDW (Visio Graphics Service file)
VDX (Microsoft Visio Drawing Format)
VRML (Virtual Reality Modeling Language)
VSD (Microsoft Visio Drawings)
VSDM (Microsoft Visio Drawing Format)
VSDX (Microsoft Visio Format)
VSS (Stencil Files)
VSSM (Microsoft Visio Stencil files)
VSSX (Drawing Stencils)
VST (Vector Image Files)
VSTM (Microsoft Visio Template Files)
VSTX (Microsoft Visio Drawing Template)
VSX (Stencils)
VTX (Microsoft Visio Drawing Template)
WAV (Waveform Audio Format)
WEBP (Raster Web Image)
WMF (Microsoft Windows Metafile)
WMV (Advanced Systems Format)
X (DirectX Model Image)
X3D (XML based 3D Graphics)
XAML (Extensible Application Markup Language)
XER (XER file format)
XHTML (XML Text Based Markup)
XLM (Excel Macro File)
XLS (Excel Binary Format)
XLSB (Binary Excel Workbook File)
XLSM (Spreasheet File)
XLSX (OOXML Excel File)
XLT (Microsoft Excel Template)
XLTM (Excel Macro-enabled Template)
XLTX (Office OpenXML Excel Template)
XML (Extensible Markup Language)
XOML (Extensible Object Markup Language)
XPS (XML Paper Specifications)
XSLFO (XSL Formatting Objects)
Create ZIP Archive via C# (Single or Multiple Files and Folders Archive)