Convert comic book archives to PDF. Page ranges, double-page spreads, multiple sizes. Files are converted locally in your browser — nothing is uploaded.
Content reviewed October 2026 · About Toolzum
Create ZIP archives from your files right in your browser. Bundle loose files into one archive.zip with DEFLATE compression — local JSZip work, unlimited saves.
Converts MP4 files to MKV format — universal video playback on any device to advanced video archiving with multiple subtitle tracks, chapters, and audio streams in one file. All conversion happens locally in your browser with no file size limits.
Converts MKV files to MOV format — advanced video archiving with multiple subtitle tracks, chapters, and audio streams in one file to Apple ecosystem. All conversion happens locally in your browser with no file size limits.
Scale all PDF pages to standard sizes — A4, Letter, or custom — for print shops and archives. Normalize mixed-size scans to uniform A4 — local work, unlimited saves.
Batch convert BMP bitmaps to lossless PNG format. Reduce file sizes dramatically while preserving every pixel from your legacy image archives. Everything runs locally in your browser — nothing is uploaded.
Zipped comic-book images — sequential pages in one handy archive.
Natural numeric filename sort (page2 before page10), exactly as archived originally.
No — every page is rasterized through canvas and re-embedded as PNG, so bytes change and animation flattens. “Match Image” keeps pixel dimensions; Comic (477×738pt) and Manga (360×540pt) presets reframe instead. Ranges like “1-10” or “1,3,5-8” select pages.
No — conversion runs locally in your browser; unlimited saves on local tools.
EPUB to PDF
Converts EPUB files to PDF format — e-readers, mobile devices, and accessible digital books to document sharing, printing, and archival with consistent formatting. All conversion happens locally in your browser with no file size limits.
Bulk E-Book Converter
Convert EPUB ebooks to paginated PDF, or PDF ebooks back to EPUB — real local text extraction. MOBI/Kindle files are rejected (repack them to EPUB in Calibre first); images-only books need OCR.