PNG to FAX — Format Comparison & Online Converter
Fast, instant PNG to FAX conversion. No signup required. Just drop your .png file and get .fax in seconds.
Batch Settings
お気に入りの漫画のワンシーンや、大切なビジネス資料のPNG画像。これを日本のビジネスシーンで今なお活躍するFAXで送る必要に迫られたことはありませんか？ PNGは美しい色彩と透明度を誇りますが、FAXはモノクロの階調と固定された解像度が特徴です。この異なる特性を持つ画像を、いかにしてFAXで「伝わる」形に変換するか。当サイトのPNGからFAXへの変換ツールは、そうした日本特有のニーズに応えるために開発されました。文字の潰れを最小限に抑え、細かな線も鮮明に再現することを目指しています。特に縦書きの文書や、繊細なイラストを含む画像でも、受信側で内容が正確に伝わるよう、独自の調整を加えています。もう、画像形式の違いに頭を悩ませる必要はありません。
- 漫画原稿のFAX送信
- 手書きビジネス図面の共有
- 社内回覧用の画像資料
日本では、FAX送受信時に文字の可読性が非常に重視されます。特に明朝体やゴシック体など、フォントの種類によっては変換後の見え方が大きく変わるため、事前にプレビューで確認することをお勧めします。
About PNG to FAX Conversion
PNG (introduced 1996) and FAX are both image formats, but they differ in important ways. PNG uses lossless compression and supports transparency, making it perfect for graphics, logos, and screenshots. FAX is a widely used file format.
When you convert PNG to FAX, the goal is to convert between formats quickly. Converting PNG to FAX maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your PNG file is decoded and re-encoded as FAX. The conversion involves 4 steps: (1) your png file is uploaded and validated, (2) the file is decoded (parsed into its raw data), (3) the data is re-encoded in fax format, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you When you need a FAX file. For the opposite direction, CocoConvert also supports FAX to PNG conversion.
How to Convert PNG to FAX
- 1
Upload .png file
Select your PNG file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .fax
Set FAX as the output format. The converter uses optimal settings based on the PNG→FAX conversion profile.
- 3
Convert
The server-side engine decodes your PNG file and re-encodes it as FAX. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .fax file. Multiple output files can be downloaded together.
What Happens When You Convert PNG to FAX
Your PNG file is decoded and re-encoded as FAX.
Your PNG file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in FAX format
The converted file is ready for download
Format Comparison
PNG
.png file
| Extension | .png |
| MIME Type | image/png |
| Category | Image |
FAX
.fax file
| Extension | .fax |
| MIME Type | image/g3fax |
| Category | Image |
Should You Convert PNG to FAX?
When to Convert
- ✓When you need a FAX file
Frequently Asked Questions
What is the difference between PNG and FAX?
PNG uses lossless compression and supports transparency, making it perfect for graphics, logos, and screenshots. FAX is a widely used file format.
Does PNG to FAX conversion affect quality?
Converting PNG to FAX maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, PNG or FAX?
PNG uses lossless compression. FAX is widely supported. The better choice depends on whether you prioritize file size or quality.
How long does PNG to FAX conversion take?
Most conversions finish in seconds. Larger files or complex image content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is PNG or FAX better for long-term storage?
PNG is better for archival since it's lossless.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.