PDF & メディア
Process PDFs and images right in your browser RAM: merge PDF files, compress WebP/PNG images, optimize SVGs, and generate barcodes & QR codes.
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プライバシーを最優先するプログラマーやクリエイターのために設計。外部送信なしの即時処理を実現します。
Zero Upload Wait (Pure In-Memory)
Large 50MB PDFs and high-res photos never get uploaded over sluggish connections.
Absolute Financial & Identity Privacy
Passports, bank statements, contracts, and personal ID cards stay 100% on your device.
High Efficiency Canvas & WebAssembly
Harnesses native hardware acceleration for lossless rendering and high-DPI QR/Barcode exports.
Unlimited Free Usage
No page quotas, file count limits, or artificial paywalls common on other online PDF sites.
よくある質問
How can PDF merger work without sending files to a server?
We use modern client-side PDF binary parsing via JavaScript (pdf-lib engine) directly compiled to run inside your browser memory. Your CPU performs the page stitching.
Can I generate commercial-grade vector Barcodes for retail products?
Yes, Barcode Generator supports standard retail formats including EAN-13, UPC-A, Code-128, and Code-39 with direct SVG and high-res PNG export.