agentic-net-examples / convert-cdr

---
name: convert-cdr
description: C# examples for Convert CDR using Aspose.Imaging for .NET
language: csharp
framework: net9.0
parent: ../agents.md
---

# AGENTS - Convert CDR

## Persona

You are a C# developer specializing in image processing using Aspose.Imaging for .NET,
working within the **Convert CDR** category.
This folder contains standalone C# examples for Convert CDR operations.
See the root [agents.md](../agents.md) for repository-wide conventions and boundaries.

## Required Namespaces

- `using System;` (30/30 files)
- `using System.IO;` (30/30 files)
- `using Aspose.Imaging.ImageOptions;` (30/30 files) ← category-specific
- `using Aspose.Imaging;` (27/30 files) ← category-specific
- `using Aspose.Imaging.FileFormats.Cdr;` (22/30 files) ← category-specific
- `using Aspose.Imaging.FileFormats.Psd;` (4/30 files) ← category-specific
- `using Aspose.Imaging.FileFormats.Pdf;` (2/30 files) ← category-specific
- `using Aspose.Imaging.FileFormats.Png;` (2/30 files) ← category-specific
- `using Aspose.Imaging.FileFormats.Jpeg;` (1/30 files) ← category-specific
- `using System.Threading.Tasks;` (1/30 files)
- `using Aspose.Imaging.ProgressManagement;` (1/30 files) ← category-specific
- `using Aspose.Imaging.Exif;` (1/30 files) ← category-specific
- `using Aspose.Imaging.Sources;` (1/30 files) ← category-specific
- `using System.Collections.Generic;` (1/30 files)

## Files in this folder

| File | Key APIs | Description |
|------|----------|-------------|
| [load-a-single-page-cdr-file-and-save-it-as-a-high-quality-jpg-using-c.cs](./load-a-single-page-cdr-file-and-save-it-as-a-high-quality-jpg-using-c.cs) | `CdrImage`, `JpegOptions` | Load a single‑page CDR file and save it as a high‑quality JPG using C#. |
| [convert-a-single-page-cdr-file-to-png-while-preserving-transparency-with-a-c-snippet.cs](./convert-a-single-page-cdr-file-to-png-while-preserving-transparency-with-a-c-snippet.cs) | `CdrImage`, `PngOptions` | Convert a single‑page CDR file to PNG while preserving transparency with a C# sn... |
| [transform-a-single-page-cdr-document-into-a-pdf-embedding-vector-data-via-c-code.cs](./transform-a-single-page-cdr-document-into-a-pdf-embedding-vector-data-via-c-code.cs) | `CdrImage`, `CdrRasterizationOptions`, `PdfOptions` | Transform a single‑page CDR document into a PDF, embedding vector data via C# co... |
| [export-a-single-page-cdr-file-to-psd-format-maintaining-layers-using-c.cs](./export-a-single-page-cdr-file-to-psd-format-maintaining-layers-using-c.cs) | `CdrImage`, `CdrRasterizationOptions`, `PsdOptions` | Export a single‑page CDR file to PSD format, maintaining layers using C#. |
| [load-a-multi-page-cdr-file-and-generate-separate-pdf-pages-for-each-vector-page-in-c.cs](./load-a-multi-page-cdr-file-and-generate-separate-pdf-pages-for-each-vector-page-in-c.cs) | `CdrImage`, `CdrRasterizationOptions`, `PdfOptions` | Load a multi‑page CDR file and generate separate PDF pages for each vector page ... |
| [convert-each-page-of-a-multi-page-cdr-document-into-individual-psd-files-preserving-color-depth-in-c.cs](./convert-each-page-of-a-multi-page-cdr-document-into-individual-psd-files-preserving-color-depth-in-c.cs) | `CdrImage`, `PsdOptions`, `VectorRasterizationOptions` | Convert each page of a multi‑page CDR document into individual PSD files preserv... |
| [batch-convert-a-folder-of-cdr-files-to-jpg-images-with-default-settings-using-c.cs](./batch-convert-a-folder-of-cdr-files-to-jpg-images-with-default-settings-using-c.cs) | `CdrImage`, `JpegOptions` | Batch convert a folder of CDR files to JPG images with default settings using C#... |
| [batch-export-cdr-files-to-png-format-by-iterating-through-a-directory-with-c-loops.cs](./batch-export-cdr-files-to-png-format-by-iterating-through-a-directory-with-c-loops.cs) | `CdrImage`, `PngOptions` | Batch export CDR files to PNG format by iterating through a directory with C# lo... |
| [combine-multiple-cdr-documents-into-a-single-pdf-preserving-page-order-via-c.cs](./combine-multiple-cdr-documents-into-a-single-pdf-preserving-page-order-via-c.cs) | `CdrRasterizationOptions`, `PdfOptions` | Combine multiple CDR documents into a single PDF, preserving page order via C#. |
| [batch-transform-a-collection-of-cdr-files-into-separate-psd-files-retaining-original-layer-structure-in-c.cs](./batch-transform-a-collection-of-cdr-files-into-separate-psd-files-retaining-original-layer-structure-in-c.cs) | `CdrImage`, `CdrRasterizationOptions`, `MultiPageOptions` | Batch transform a collection of CDR files into separate PSD files, retaining ori... |
| [wrap-cdr-to-jpg-conversion-in-try-catch-blocks-to-log-runtime-exceptions-in-c.cs](./wrap-cdr-to-jpg-conversion-in-try-catch-blocks-to-log-runtime-exceptions-in-c.cs) | `JpegOptions` | Wrap CDR‑to‑JPG conversion in try‑catch blocks to log runtime exceptions in C#. |
| [verify-that-a-jpg-file-created-from-cdr-conversion-exists-and-has-non-zero-size-in-c.cs](./verify-that-a-jpg-file-created-from-cdr-conversion-exists-and-has-non-zero-size-in-c.cs) | `JpegOptions`, `VectorRasterizationOptions` | Verify that a JPG file created from CDR conversion exists and has non‑zero size ... |
| [set-jpeg-quality-to-90-before-saving-a-cdr-conversion-to-jpg-using-c-options.cs](./set-jpeg-quality-to-90-before-saving-a-cdr-conversion-to-jpg-using-c-options.cs) | `CdrImage`, `JpegOptions`, `VectorRasterizationOptions` | Set JPEG quality to 90 before saving a CDR conversion to JPG using C# options. |
| [adjust-png-compression-to-maximum-while-converting-a-cdr-file-to-png-in-c.cs](./adjust-png-compression-to-maximum-while-converting-a-cdr-file-to-png-in-c.cs) | `CdrImage`, `CdrRasterizationOptions`, `PngOptions` | Adjust PNG compression to maximum while converting a CDR file to PNG in C#. |
| [define-custom-pdf-page-size-a4-when-converting-a-multi-page-cdr-document-to-pdf-using-c.cs](./define-custom-pdf-page-size-a4-when-converting-a-multi-page-cdr-document-to-pdf-using-c.cs) | `CdrRasterizationOptions`, `MultiPageOptions`, `PdfOptions` | Define custom PDF page size A4 when converting a multi‑page CDR document to PDF ... |
| [specify-16-bit-color-depth-for-psd-output-when-converting-a-cdr-file-to-psd-in-c.cs](./specify-16-bit-color-depth-for-psd-output-when-converting-a-cdr-file-to-psd-in-c.cs) | `PsdOptions`, `VectorRasterizationOptions` | Specify 16‑bit color depth for PSD output when converting a CDR file to PSD in C... |
| [convert-a-cdr-file-from-a-memory-stream-directly-to-jpg-without-intermediate-files-in-c.cs](./convert-a-cdr-file-from-a-memory-stream-directly-to-jpg-without-intermediate-files-in-c.cs) | `CdrImage`, `JpegOptions`, `VectorRasterizationOptions` | Convert a CDR file from a memory stream directly to JPG without intermediate fil... |
| [convert-a-cdr-file-from-a-byte-array-to-png-and-output-to-a-memory-stream-in-c.cs](./convert-a-cdr-file-from-a-byte-array-to-png-and-output-to-a-memory-stream-in-c.cs) | `CdrImage`, `LoadOptions`, `PngOptions` | Convert a CDR file from a byte array to PNG and output to a memory stream in C#. |
| [use-asynchronous-methods-to-convert-a-cdr-file-to-pdf-improving-ui-responsiveness-in-c.cs](./use-asynchronous-methods-to-convert-a-cdr-file-to-pdf-improving-ui-responsiveness-in-c.cs) | `CdrImage`, `CdrRasterizationOptions`, `PdfOptions` | Use asynchronous methods to convert a CDR file to PDF, improving UI responsivene... |
| [implement-progress-reporting-while-batch-converting-cdr-files-to-jpg-updating-a-console-progress-bar-in-c.cs](./implement-progress-reporting-while-batch-converting-cdr-files-to-jpg-updating-a-console-progress-bar-in-c.cs) | `JpegOptions`, `LoadOptions` | Implement progress reporting while batch converting CDR files to JPG, updating a... |
| [apply-a-custom-jpeg-encoder-setting-to-embed-exif-metadata-during-cdr-to-jpg-conversion-in-c.cs](./apply-a-custom-jpeg-encoder-setting-to-embed-exif-metadata-during-cdr-to-jpg-conversion-in-c.cs) | `JpegOptions` | Apply a custom JPEG encoder setting to embed EXIF metadata during CDR‑to‑JPG con... |
| [preserve-alpha-channel-when-converting-a-cdr-file-to-png-by-configuring-png-options-in-c.cs](./preserve-alpha-channel-when-converting-a-cdr-file-to-png-by-configuring-png-options-in-c.cs) | `CdrRasterizationOptions`, `PngOptions` | Preserve alpha channel when converting a CDR file to PNG by configuring PNG opti... |
| [generate-a-pdf-with-embedded-fonts-when-converting-a-cdr-file-to-pdf-using-c.cs](./generate-a-pdf-with-embedded-fonts-when-converting-a-cdr-file-to-pdf-using-c.cs) | `CdrRasterizationOptions`, `PdfOptions` | Generate a PDF with embedded fonts when converting a CDR file to PDF using C#. |
| [retain-layer-groups-when-exporting-a-cdr-file-to-psd-by-enabling-layer-preservation-in-c.cs](./retain-layer-groups-when-exporting-a-cdr-file-to-psd-by-enabling-layer-preservation-in-c.cs) | `CdrImage`, `MultiPageOptions`, `PsdOptions` | Retain layer groups when exporting a CDR file to PSD by enabling layer preservat... |
| [resize-a-cdr-to-jpg-conversion-output-to-1024-768-pixels-during-saving-in-c.cs](./resize-a-cdr-to-jpg-conversion-output-to-1024-768-pixels-during-saving-in-c.cs) | `CdrRasterizationOptions`, `JpegOptions` | Resize a CDR‑to‑JPG conversion output to 1024×768 pixels during saving in C#. |
| [apply-lossless-compression-to-a-cdr-to-png-conversion-while-maintaining-original-dimensions-in-c.cs](./apply-lossless-compression-to-a-cdr-to-png-conversion-while-maintaining-original-dimensions-in-c.cs) | `CdrImage`, `CdrRasterizationOptions`, `PngOptions` | Apply lossless compression to a CDR‑to‑PNG conversion while maintaining original... |
| [set-pdf-version-to-1-7-for-compatibility-when-converting-a-cdr-file-to-pdf-in-c.cs](./set-pdf-version-to-1-7-for-compatibility-when-converting-a-cdr-file-to-pdf-in-c.cs) | `PdfCoreOptions`, `PdfOptions` | Set PDF version to 1.7 for compatibility when converting a CDR file to PDF in C#... |
| [set-psd-resolution-to-300-dpi-for-print-quality-when-converting-a-cdr-file-in-c.cs](./set-psd-resolution-to-300-dpi-for-print-quality-when-converting-a-cdr-file-in-c.cs) | `CdrImage`, `PsdOptions` | Set PSD resolution to 300 DPI for print quality when converting a CDR file in C#... |
| [ensure-fonts-are-embedded-in-the-pdf-output-when-converting-a-cdr-file-with-embedded-fonts-using-c.cs](./ensure-fonts-are-embedded-in-the-pdf-output-when-converting-a-cdr-file-with-embedded-fonts-using-c.cs) | `CdrRasterizationOptions`, `LoadOptions`, `PdfOptions` | Ensure fonts are embedded in the PDF output when converting a CDR file with embe... |
| [batch-convert-cdr-files-to-jpg-naming-each-output-with-the-original-filename-plus-timestamp-in-c.cs](./batch-convert-cdr-files-to-jpg-naming-each-output-with-the-original-filename-plus-timestamp-in-c.cs) | `CdrImage`, `JpegOptions` | Batch convert CDR files to JPG, naming each output with the original filename pl... |

## Category Statistics
- Total examples: 30
- Failed: 0
- Pass rate: 100.0%

## Key API Surface

- `CdrImage`
- `CdrLoadOptions`
- `CdrRasterizationOptions`
- `JpegOptions`
- `LoadOptions`
- `MultiPageOptions`
- `PdfCoreOptions`
- `PdfOptions`
- `PngOptions`
- `PsdOptions`
- `PsdVectorizationOptions`
- `RasterImage`
- `VectorRasterizationOptions`

## Failed Tasks

All tasks passed ✅



## Operations Covered
- Convert CDR to PNG with maximum compression  
- Convert CDR to PNG with lossless compression while keeping original dimensions  
- Batch convert multiple CDR files to JPEG with timestamped filenames  
- Batch convert multiple CDR files to PSD while preserving layer structure  
- Convert CDR byte array to PNG and write to a memory stream  
- Convert single‑page CDR to transparent PNG (preserve alpha channel)  
- Convert multi‑page CDR to PDF with custom A4 page size  
- Create output directories automatically if missing  

## Supported Formats
- **CDR** – CorelDRAW source format being loaded.  
- **PNG** – Target format for most conversions; used with compression and transparency options.  
- **JPEG** – Target format in the batch‑convert‑to‑JPG example.  
- **PSD** – Target format when retaining original layer structure.  
- **PDF** – Target format for multi‑page document conversion with custom page size.  

## API Classes Used
- `Aspose.Imaging.Image.Load` — Static method that loads an image file (e.g., a CDR file) and returns an appropriate image object.  
- `CdrImage` — Represents a CorelDRAW document; provides access to pages, layers, and allows saving to other formats.  
- `PngOptions` — Holds PNG‑specific saving options such as compression level and transparency handling.  
- `JpegOptions` — Holds JPEG‑specific saving options (e.g., quality) used when converting to JPEG.  
- `PsdOptions` — Holds PSD‑specific saving options to preserve layers when saving as Photoshop files.  
- `PdfOptions` — Holds PDF‑specific saving options, including page size configuration.  
- `Image.Save(string path, ImageOptions options)` — Saves the loaded image to the specified path using the provided format options.  
- `Image.Save(Stream stream, ImageOptions options)` — Saves the image directly into a memory stream (used for byte‑array conversion).  
- `Directory.CreateDirectory(string path)` — Ensures the output folder exists before saving files.  
- `File.Exists(string path)` — Checks that the source CDR file is present before processing.


## Use Cases
- When you need to shrink CorelDRAW files for web delivery, you can **convert CDR to PNG with maximum compression in C#** by setting `PngOptions.CompressionLevel` to the highest value, as shown in the “adjust‑png‑compression‑to‑maximum‑while‑converting‑a‑cdr‑file‑to‑png‑in‑c.cs” example.  
- If preserving every pixel is critical—such as for archival of design assets—you can perform a **CDR to PNG lossless compression using Aspose.Imaging C#** by using `PngOptions` with `CompressionLevel = 0` and disabling any color reduction, demonstrated in the “apply‑lossless‑compression‑to‑a‑cdr‑to‑png‑conversion‑while‑maintaining‑original‑dimensions‑in‑c.cs” snippet.  
- For automated pipelines that generate product thumbnails, the **batch convert CDR files to JPG with timestamped filenames in C#** pattern lets you iterate over a folder, convert each `.cdr` to `.jpg`, and append `DateTime.Now:yyyyMMddHHmmss` to the output name, as illustrated in the “batch‑convert‑cdr‑files‑to‑jpg‑naming‑each‑output‑with‑the‑original‑filename‑plus‑timestamp‑in‑c.cs” file.  
- When a design team needs to hand off layered artwork to Photoshop, the **convert CDR to PSD retaining original layer structure C#** approach uses `PsdOptions` and the `ExportLayers` flag to keep each CorelDRAW layer intact, which is the core of the “batch‑transform‑a‑collection‑of‑cdr‑files‑into‑separate‑psd‑files‑retaining‑original‑layer‑structure‑in‑c.cs” example.  
- If you are building a service that streams images directly to a client without touching the file system, you can **adjust PNG compression while converting CDR to PNG in C#** by loading the CDR into a `MemoryStream`, applying custom `PngOptions`, and returning the resulting stream, as demonstrated in the “convert‑a‑cdr‑file‑from‑a‑byte‑array‑to‑png‑and‑output‑to‑a‑memory‑stream‑in‑c.cs” code.

## Related Categories
The techniques for handling CorelDRAW files often overlap with other raster‑to‑raster conversions, so you may find the **[Convert Raster Image](../convert-raster-image/)** examples useful when you need to work with PNG or JPG files after the initial CDR conversion.  
If your workflow involves vector sources like SVG before reaching CDR, the **[Convert Svg To Raster Images](../convert-svg-to-raster-images/)** category shows how to rasterize SVGs with fine‑grained compression control, which can be combined with the CDR‑to‑PNG pipelines above.  
For scenarios where you need to embed the resulting images into PDFs or other document formats, the **[Working With Drawing Images](../working-with-drawing-images/)** section provides guidance on handling multi‑page drawings and preserving drawing metadata across formats.


## Get Started

Ready to try Convert Cdr conversions on your own files with Aspose.Imaging for .NET?

```bash
dotnet add package Aspose.Imaging
```

| Resource | Link |
|----------|------|
| 📖 Documentation | [docs.aspose.com/imaging/net](https://docs.aspose.com/imaging/net/) |
| 📦 NuGet Package | [www.nuget.org/packages/aspose.imaging](https://www.nuget.org/packages/aspose.imaging) |
| 🚀 Release Notes | [releases.aspose.com/imaging/net](https://releases.aspose.com/imaging/net/) |
| 🌐 Online Apps | [products.aspose.app/imaging/family](https://products.aspose.app/imaging/family/) |
| 🔑 Free Temporary License | [purchase.aspose.com/temporary-license](https://purchase.aspose.com/temporary-license) |
| 🤝 Consulting (paid implementation help) | [consulting.aspose.com](https://consulting.aspose.com/) |

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Updated: 2026-09-16 | Run: `20260722_051918` | Examples: 30
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## Developer Q&A

### Q: How can I set maximum PNG compression when converting a CorelDRAW CDR file to PNG using Aspose.Imaging in C#?  
Use `PngOptions.CompressionLevel = PngCompressionLevel.Maximum` and call `image.Save(outputPath, pngOptions)`. → See: `adjust-png-compression-to-maximum-while-converting-a-cdr-file-to-png-in-c.cs`

### Q: How do I preserve transparency while converting a single‑page CDR to PNG with Aspose.Imaging for .NET?  
Load the CDR with `Image.Load`, create `PngOptions` with `ColorType = PngColorType.TruecolorWithAlpha`, then save via `image.Save(outputPath, pngOptions)`. → See: `convert-a-single-page-cdr-file-to-png-while-preserving-transparency-with-a-c-snippet.cs`

### Q: How can I batch convert multiple CDR files to JPG and include a timestamp in each output filename using Aspose.Imaging C#?  
Iterate the CDR files, build the output name like `$"{Path.GetFileNameWithoutExtension(file)}_{DateTime.Now:yyyyMMddHHmmss}.jpg"`, and save each with `JpegOptions` via `image.Save`. → See: `batch-convert-cdr-files-to-jpg-naming-each-output-with-the-original-filename-plus-timestamp-in-c.cs`

### Q: What is the way to convert a CDR file from a byte array to a PNG memory stream with Aspose.Imaging in C#?  
Call `Image.Load(byteArray)` to get the CDR image, then `image.Save(memoryStream, new PngOptions())`. → See: `convert-a-cdr-file-from-a-byte-array-to-png-and-output-to-a-memory-stream-in-c.cs`

### Q: How can I report progress while batch converting CDR files to JPG in a console application using Aspose.Imaging?  
Assign a `ProgressCallback` to `ImageOptions` or handle `Image.Progress` and update the console bar inside the loop. → See: `implement-progress-reporting-while-batch-converting-cdr-files-to-jpg-updating-a-console-progress-bar-in-c.cs`