画像を圧縮
画像を圧縮
Use Cases
Typical scenarios for 画像を圧縮 — see if it fits before you start
画像を圧縮 · Scenario 1
Batch JPG/PNG/WebP/SVG to A4 PDF, 画像を圧縮 offers fit/fill/original, preserving transparency for portfolios.
画像を圧縮 · Scenario 2
Extracting images, 画像を圧縮 detects resolution and exports per page with rename.
画像を圧縮 · Scenario 3
Scans to printable PDF, 画像を圧縮 supports batch and resolution options, ready for print.
How to Use
- Upload — Click or drag PDF/images to the dashed zone. Multi-file and large files (<100MB per batch recommended) are read locally only.
- Configure & process — Set pages, angle, password or quality, then hit “Calculate / Process”. 画像を圧縮 runs via WebAssembly and pdf-lib in your browser — no server queue.
- Preview & download — Check pages, size and thumbnails on the right, then download. Batch jobs download one by one; tweak and re-run if needed.
Tips & Notes
- Page syntax: Use
1,3,5-7or1-10,15; empty means all. Out-of-range pages are ignored. - Privacy & size: Everything runs locally — no server upload. For large files, process in batches of 50–100 pages.
- Fidelity: Fonts and vectors are preserved where possible. For scanned PDFs, run OCR/searchable PDF first, then convert.
機能
- Single/batch image convert
- A4 fit
- Batch export
Supported Formats
All conversions run locally in the browser; check fidelity in desktop for complex layouts.
よくある質問
Will files be uploaded? Is 画像を圧縮 safe?
No. 画像を圧縮 runs 100% in your browser via File API; no network upload, memory cleared when you close the tab.
Processing failed or download blocked?
Check page ranges, passwords and file integrity. If the browser blocks multiple downloads, allow “automatic downloads” or click links one by one.
How to chain with other image tools?
Combine workflows: organize pages first, then compress/convert for submission, then protect/sign for delivery.
使い方
Upload file, process, download.
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