How do I convert PUB to JPG?

Upload your PUB file above. It is converted to JPG 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 PUB to JPG lose quality?

JPG is lossy, so some fine detail is discarded to make the file smaller. Raise the quality in Settings for a closer copy.

PUB or JPG: which should I use?

Use PUB for flyers, newsletters and cards designed in Microsoft Publisher. Use JPG for photos you share, email, print or upload. Keep in mind the main drawback of JPG: no transparency, and every re-save loses a little more detail.

PUBファイルとは？

PUB is the document format of Microsoft Publisher, used for flyers, newsletters and cards. Only Publisher on Windows opens it, and Microsoft has announced that Publisher reaches end of support in October 2026.

Can I convert PUB to JPG without Microsoft Publisher?

はい。PUBファイルは当社のサーバーで開かれるため、Microsoft Publisherやその他のソフトをインストールする必要はありません。ファイルをアップロードして、完成したJPGをダウンロードしてください。

Is the PUB to JPG 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 PUB to JPG — Free Online PUB Converter

Convert PUB to JPG online. Open PUB files without Microsoft Publisher and get a compatible image; preview one free or batch-convert with Premium.

Drop your PUB file or click to browse

Why convert PUB to JPG?

JPG is supported far more widely than PUB, so the file is easier to open, share and upload.
JPG is made for photos you share, email, print or upload.
No Microsoft Publisher needed: the file is opened on our servers and you download a ready-to-use JPG.

What to expect when converting PUB to JPG

JPG uses lossy compression; raise the quality in Settings for a closer copy of the original.
Only the first page is converted.

PUBとJPGの比較

機能	PUB	JPG
氏名	Microsoft Publisher document	JPEG (Joint Photographic Experts Group)
由来	1991年からのMicrosoft Publisherの形式	1992年に標準化
圧縮	DTPレイアウト	非可逆、画質を調整可能
透過	いいえ	いいえ
アニメーション	いいえ	いいえ
色	フルカラー	1,670万色（チャンネルあたり8ビット）
開けるアプリ	Microsoft Publisher on Windows only	All browsers, phones, computers and photo apps
こんな方に最適	flyers, newsletters and cards designed in Microsoft Publisher	photos you share, email, print or upload
主な欠点	only Microsoft Publisher on Windows opens it	no transparency, and every re-save loses a little more detail

In short: choose PUB for flyers, newsletters and cards designed in Microsoft Publisher; choose JPG for photos you share, email, print or upload.

Frequently asked questions

How do I convert PUB to JPG?: Upload your PUB file above. It is converted to JPG 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 PUB to JPG lose quality?: JPG is lossy, so some fine detail is discarded to make the file smaller. Raise the quality in Settings for a closer copy.
PUB or JPG: which should I use?: Use PUB for flyers, newsletters and cards designed in Microsoft Publisher. Use JPG for photos you share, email, print or upload. Keep in mind the main drawback of JPG: no transparency, and every re-save loses a little more detail.
PUBファイルとは？: PUB is the document format of Microsoft Publisher, used for flyers, newsletters and cards. Only Publisher on Windows opens it, and Microsoft has announced that Publisher reaches end of support in October 2026.
Can I convert PUB to JPG without Microsoft Publisher?: はい。PUBファイルは当社のサーバーで開かれるため、Microsoft Publisherやその他のソフトをインストールする必要はありません。ファイルをアップロードして、完成したJPGをダウンロードしてください。
Is the PUB to JPG 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.

JPGへのPUB 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 PUB files to JPG online
Adjust JPG quality to balance file size and detail
Switch to any other output format in Settings
Batch-convert many PUB files into one ZIP
Preview the result before you download

このツールを使用する

設定リファレンス

JPGへのPUB 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）。