Any file up to 500 MB. Drop several files and they come back as one ZIP. Many image, audio and video conversions run in your browser; anything else is uploaded and removed within the hour.
ConvertX.am converts PUB files to PDF online, for free and without signing up. Upload a file of up to 500 MB and download the PDF result; uploaded and converted files are deleted automatically within about an hour.
Convert PUB files to PDF instantly to share your Microsoft Publisher vector layouts without layout shifts. Ideal for designers and office workers who need universal document viewing.
Microsoft Publisher uses the PUB format specifically for desktop publishing, storing complex vector graphics, text frames, and multi-page layouts. Converting PUB to PDF translates these proprietary vector structures into a universally readable document format. This process locks in your exact typography, margins, and vector placement so it looks identical on any device, regardless of whether the recipient has Publisher installed.
Because PUB is a vector graphics layout and PDF is a standardized document format designed to preserve vector data, the conversion happens without quality loss. Your text and graphics remain crisp, and the resulting file size changes only insignificantly.
We built this project so anyone can convert files without paywalls, accounts, or hidden limits. Here is what that promise means in practice.
Every converter on ConvertX is free to use: no trials, no premium tiers, and no credit packs. We will never put core conversion features behind a subscription. Whether you convert one photo or a hundred files a week, the price stays zero.
Many image, audio, and video conversions run entirely in your browser. Your files never leave your device for those jobs. When server processing is required for documents or specialized formats, uploads are handled securely and removed automatically — typically within one hour.
A quick guide to strengths and trade-offs of popular formats — so you pick the right one before converting.
Office files, PDFs, ebooks, and plain text.
Common extensions: PDF, DOCX, XLSX, PPTX, ODT, EPUB, TXT
Raster and vector graphics for web, print, and photography.
Common extensions: PNG, JPG, WebP, AVIF, GIF, SVG, HEIC, TIFF
Clips, streams, screen recordings, and movies.
Common extensions: MP4, WebM, MOV, MKV, AVI, MPEG
Music, podcasts, voice recordings, and sound effects.
Common extensions: MP3, WAV, FLAC, OGG, AAC, M4A, OPUS
