ICO vs PGX — Comparison & Free Converter
Fast, instant ICO to PGX conversion. No signup required. Just drop your .ico file and get .pgx in seconds.
Batch Settings
このページでは、ICO形式のファイルをPGX形式へ変換するお手伝いをいたします。ICOは主にウェブサイトのファビコンやアプリケーションのアイコンに使われる、複数のサイズや色深度の画像を一つにまとめた形式です。一方、PGXはグレーディング処理に特化した高精度な画像形式で、繊細な階調表現が求められる場面でその真価を発揮します。アイコンとして使われることが多いICOファイルですが、これをPGXに変換することで、より詳細な画像解析や、印刷物での利用、あるいは特定のグラフィックソフトウェアでの高度な編集が可能になります。例えば、漫画のコマやイラストの一部をアイコンとして利用し、その後、より精密な修正や印刷工程のためにPGX形式に変換するといった使い方も考えられます。当社の変換ツールは、このような専門的なニーズにも対応できるよう、品質を損なうことなくスムーズな変換を実現します。
- 漫画原稿のグレーディング前処理
- ビジネス資料におけるアイコンの高精度化
- 縦書きデザイン要素の精密な画像処理
PGX形式は、特に日本の印刷業界やDTP分野で、モノクロ画像の高精度な階調表現に利用されることがあります。ICOからの変換は稀ですが、専門的なワークフローにおいては価値があります。
About ICO to PGX Conversion
ICO or PGX — which format should you use? The answer depends on your needs. Here's a quick breakdown.
ICO is the icon format used for website favicons and Windows application icons. It has universal platform support. PGX is a widely used file format. It has common platform support.
So when should you convert ICO to PGX? This conversion is ideal when you When you need a PGX file. This conversion helps you convert between formats quickly.
Converting ICO to PGX maintains high quality with CocoConvert's optimised encoder settings.
If you've decided PGX is the right choice, CocoConvert makes the conversion effortless. Upload your .ico file, pick PGX, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert ICO to PGX
- 1
Choose your ICO file
Upload your .ico file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to PGX
Select .pgx from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large image files.
- 4
Get your PGX file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert ICO to PGX
Your ICO file is decoded and re-encoded as PGX.
Your ICO file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in PGX format
The converted file is ready for download
Format Comparison
ICO
.ico file
| Extension | .ico |
| MIME Type | image/x-icon |
| Category | Image |
PGX
.pgx file
| Extension | .pgx |
| MIME Type | image/x-pgx |
| Category | Image |
Should You Convert ICO to PGX?
When to Convert
- ✓When you need a PGX file
Frequently Asked Questions
Should I use ICO or PGX?
It depends on your goal. ICO preserves full quality. PGX preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is PGX higher quality than ICO?
Not necessarily. Converting ICO to PGX maintains high quality with CocoConvert's optimised encoder settings. Quality depends on the compression type and settings, not just the format name.
Can I convert ICO to PGX on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for ICO to PGX?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for ICO to PGX?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.