PDF to Images は何をしますか？
PDF to Images はブラウザ上でデータやファイルを変換するツールで、結果と制限を明確に示します。 検証済みの機能： PDF page rendering, PNG output, JPEG output, Up to 50 selected pages.
PNG for sharp graphics; JPEG for smaller photographic pages
Choose PNG for diagrams, screenshots, and text-heavy pages where lossless edges matter. Choose JPEG for photographic pages when smaller downloads are more important than exact pixels.
使い方
- Open one PDF and enter the pages to render, or leave Page range empty for all pages.
- Choose PNG or JPEG and select Process; review the selected-page count and render batches of up to 50 pages. Download each batch before continuing; Cancel keeps completed images available.
- Download each page image and verify visual detail at the fixed 1.5× render scale.
実際の入出力例
Render two selected pages as PNG
入力
Source: 3-page PDF
Page range: 1,3
Image format: PNG出力
page-1.png
page-3.pngEach selected PDF page becomes an independent raster image; page 2 is not rendered.
一般的なエラーと対処
| 症状 | 原因 | 対処 |
|---|---|---|
| Text in the image cannot be selected or searched. | Rendering converts the page appearance to pixels. | Use Extract Text from PDF when the document has a text layer, or an OCR tool for scanned pages. |
| Only 50 images are produced. | The page intentionally caps one rendering run at 50 selected pages. | Download the current images, then select Process next batch to continue the remaining selected pages. |
Important behavior of PDF to Images
このツール固有の制限： Raster output is not searchable text and can be large for high-detail pages.
標準と実装の参考資料
- Mozilla PDF.js documentation (opens in a new tab)Documents the browser PDF renderer used to draw pages to canvas.
- MDN — HTMLCanvasElement.toBlob() (opens in a new tab)Documents the PNG and JPEG export step.
PDF to Images — FAQ
Does the PDF to Images upload my input?
No. Processing runs in the current browser tab, and the page does not send tool input to a KitLumi processing endpoint.
What input does the PDF to Images accept?
It accepts one PDF and an optional page range. The workspace checks the input and reports malformed or unsupported values before it produces a result.
What does the PDF to Images produce?
It produces individual downloadable PNG or JPEG page images. Copy and download controls appear when the output format supports them.
What limitation should I know?
Raster output is not searchable text and can be large for high-detail pages.
更新内容
実質的な更新： PDF to Images: Added page-count preview, batches of up to 50 pages, progress, cancellation, and continuation without silently dropping selected pages.