Will files be uploaded? Is JPG to PDF safe?

JPG to PDF 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 one by one.

How to chain with other tools?

Chain workflows: organize pages first, then compress/convert for submission, then protect/sign for delivery.

JPG to PDF

Convert JPG images to PDF — single or multiple images, A4 fit, adjustable quality.

Use Cases

Typical scenarios for JPG to PDF — see if it fits before you start

JPG to PDF · Scenario 1

Batch JPG/PNG/WebP/SVG to A4 PDF, JPG to PDF offers fit/fill/original, preserving transparency for portfolios.

JPG to PDF · Scenario 2

Extracting images, JPG to PDF detects resolution and exports per page with rename.

JPG to PDF · Scenario 3

Scans to printable PDF, JPG to PDF 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”. JPG to PDF 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 1,3,5-7 or 1-10,15; 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/multi image → one PDF
A4 fit/fill/original
Drag sort & compression

Supported Formats

Input

JPG

Output

PDF

All conversions run locally in the browser; check fidelity in desktop for complex layouts.

よくある質問

Merge multiple JPGs to one PDF sharp?

JPG to PDF supports single/batch with “fit/fill/original” layouts, auto A4 and color/transparent preservation — for portfolios. Sort by filename or drag chips, pick “high quality”, preview each page for sharpness.

PNG/WebP/HEIC supported?

Yes. JPG, PNG, WebP, HEIC, TIFF, BMP, SVG via “Image to PDF” or single-format tools, auto-detect and uniform layout — for phone albums. HEIC via heic2any → JPEG → PDF, all locally.

Control page size/orientation?

Default A4 portrait, pick “landscape” or “original” to keep aspect — for posters vs resumes. After conversion, tweak with “Rotate PDF” and “Compress PDF” for print vs web.

使い方

Select JPG images, arrange order, convert to PDF.

すべての計算はブラウザ内で実行され、データはアップロードされません。