Professional PDF Toolkit

You can merge up to around 100 files, subject to your device's available memory since everything runs in your browser.

No, merging copies the original pages exactly as they are — page size, orientation and embedded fonts are preserved.

No. Every operation — merging, compressing, previewing — happens entirely inside your browser. Your files are never uploaded anywhere.

Not currently. Please remove the password from the PDF first (using your PDF reader), then merge it here.

Compression re-renders pages as optimized images, so there is some quality trade-off, especially at higher compression levels. "Low" keeps quality closest to the original.

Yes, both Merge and Compress work on mobile browsers, including file selection from your phone's storage.

Yes, merging preserves the original pages including any hyperlinks and bookmarks they contain.

Compression rebuilds each page as a high-resolution image, so the text will look sharp but will no longer be selectable or searchable — this tool is best for scanned or image-heavy documents.

Low keeps the most detail with a smaller size reduction; Maximum gives the smallest file but with more visible quality loss. Medium and High sit in between.

You can reorder whole files in the merge queue by dragging them or using the up/down arrows — each file's internal page order stays as-is.

There's no hard-coded limit, but very large files (combined over roughly 500MB) may slow down or fail depending on your device's available memory.

Yes — Split PDF, Rotate PDF, Delete Pages, Watermark, Protect and Unlock PDF are planned as additional modules in this same toolkit.