How do I convert JFIF to PDF?

Upload your JFIF file above. It is converted to PDF automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.

Does converting JFIF to PDF lose quality?

The image is embedded in the PDF as a high-quality JPEG at its full pixel size.

JFIF or PDF: which should I use?

Use JFIF for nothing a JPG can't do — it holds the same image data. Use PDF for emailing, printing and attaching images to forms and applications. Keep in mind the main drawback of PDF: the picture isn't editable as an image until you convert it back.

JFIFファイルとは？

A .jfif file is a JPEG with an unusual extension; Windows and some browsers save web images this way. The picture is identical to a .jpg, but many sites and apps refuse the .jfif name.

Can I put several JFIF images into one PDF?

This converter makes one PDF page per image. To combine several images into one PDF, use the Image to PDF tool.

Is the JFIF to PDF converter free?

Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

Convert JFIF to PDF — One-Page PDF to Print or Email

Convert JFIF to PDF online to get a one-page PDF you can print, email or upload. No software to install. Preview one free or batch-convert with Premium.

Drop your JFIF file or click to browse

Why convert JFIF to PDF?

PDF is supported far more widely than JFIF, so the file is easier to open, share and upload.
The PDF page is sized to your image, so it prints and previews without cropping or extra borders.

What to expect when converting JFIF to PDF

You get one page per image, with the picture embedded as a high-quality JPEG. To combine several images into one PDF, use the Image to PDF tool.
元のJFIFファイルは変更されません。新しいPDFのコピーをダウンロードします。

JFIFとPDFの比較

機能	JFIF	PDF
氏名	JPEG File Interchange Format	Portable Document Format
由来	Defined in 1992 as the standard JPEG file layout	Created by Adobe in 1993; an ISO standard since 2008
圧縮	非可逆（中身はJPEG）	Document page with the image embedded at high quality
透過	いいえ	No — transparent areas get a solid background
アニメーション	いいえ	いいえ
色	1,670万色（チャンネルあたり8ビット）	フルカラー
開けるアプリ	Most image viewers, but many upload forms reject the .jfif extension	Built-in viewers in browsers, phones and computers
こんな方に最適	JPGにできないことは何もない — 同じ画像データを保持している	emailing, printing and attaching images to forms and applications
主な欠点	upload forms and some apps reject the .jfif extension	元の形式に戻すまで、画像として編集できない

In short: choose JFIF for nothing a JPG can't do — it holds the same image data; choose PDF for emailing, printing and attaching images to forms and applications.

Frequently asked questions

How do I convert JFIF to PDF?: Upload your JFIF file above. It is converted to PDF automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.
Does converting JFIF to PDF lose quality?: The image is embedded in the PDF as a high-quality JPEG at its full pixel size.
JFIF or PDF: which should I use?: Use JFIF for nothing a JPG can't do — it holds the same image data. Use PDF for emailing, printing and attaching images to forms and applications. Keep in mind the main drawback of PDF: the picture isn't editable as an image until you convert it back.
JFIFファイルとは？: A .jfif file is a JPEG with an unusual extension; Windows and some browsers save web images this way. The picture is identical to a .jpg, but many sites and apps refuse the .jfif name.
Can I put several JFIF images into one PDF?: This converter makes one PDF page per image. To combine several images into one PDF, use the Image to PDF tool.
Is the JFIF to PDF converter free?: Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

JFIFからPDFへでできること

始める前に、主な機能を確認してください。

Convert JFIF files to PDF online
Get a one-page PDF sized to your image
Switch to any other output format in Settings
Batch-convert many JFIF files into one ZIP
Preview the result before you download

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設定リファレンス

JFIFからPDFへで使用可能なコントロール。

設定

出力形式ドロップダウン: Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.オプション: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
品質スライダーレンジ: 20–100 · デフォルト: 90: For JPG, WebP, AVIF and image-to-PDF output: higher keeps more detail but makes a bigger file; 60–80 suits most photos. Documents (Publisher, XPS, EPS…) become PDFs with every page and sharp text, with no quality setting.
ロスレスモードオン/オフ: For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
背景の塗りつぶしカラーピッカー: 透過を保存できないJPG、BMP、画像からPDFへの出力用：透明な部分を塗りつぶす色（既定は白）。