Convert PDF pages separately or join the whole document into one long image

Ordinary pages render sequentially. Exceptionally long or complex pages render in safe-height slices and join without cropping, stretching or retaining every full-resolution canvas.

One / all / one long image144 / 216 / 300 DPIWebP / JPG / PNG / AVIFLong-page sliced rendering

Open PDF to image →仕組みを読む

能力の概要

これらの事実は現在の製品を説明するものであり、未出荷のロードマップ作業を説明するものではありません。

どこで実行されるか: Sliced or sequentially in your browser
Scope: One / all / one joined long image
出力: WebP / JPG / PNG / AVIF
明瞭度: 144 / 216 / 300 DPI

DataDance 製品およびエンジニアリングチームによるレビュー · 公開 2026-08-29 · 更新されました 2026-08-30

3ステップで完了

エクスポートする前に重要な設定を確認してください。処理場所は常に開示されます。

Choose a PDF and output range

Enter one page number, export every page separately, or join all pages vertically as one long image.

Choose clarity and format

216 DPI is the balanced default; WebP uses a visually lossless content-aware recommendation.

Preview and save

Save a page or long image directly, or download separate pages in a ZIP with stable page numbers.

How are PDF pages rendered clearly?

ImgIng rebuilds text, vectors and images at the page’s true dimensions and selected DPI, then uses the existing image encoders. 216 DPI balances screen detail and size; 300 DPI suits print or downstream OCR.

How do exceptionally long PDFs work?

A very tall page or one with many fonts and vector resources is rendered in safe-height slices and composited back at the original coordinates. Nothing is cropped and the page aspect ratio does not change.

How is a whole-PDF long image kept safe?

Every page keeps the same scale and is stacked vertically. Only when the combined pixels or encoder dimensions exceed the browser’s safe ceiling is the entire stack proportionally reduced; finished slices are released immediately.

Updated 2026-08-30 · Live capability detection inside the tool is authoritative

よくある質問

これらの目に見える答えは、現在の製品の動作と構造化データと一致します。

Does the PDF upload?

No. Parsing, page rendering and image encoding stay in the browser.

Can I convert one page or one whole-document long image?

Yes. Choose one original page, every page separately, or join all pages in order into one long image.

Which format should I use?

Use WebP for web delivery, JPG for photo compatibility, PNG for lossless graphics, or AVIF where supported.

画像の探索

各タスクページには、キーワードを交換した重複ではなく、実際の設定、制限、形式に関するアドバイスが文書化されています。