Your files stay on your Mac.
Convertessa reads each .pptx slide and renders it as a PDF page, preserving fonts, shapes, and embedded images exactly as they appear in PowerPoint. Metadata is stripped from embedded images during conversion. Everything runs on your Mac — no file ever leaves your machine.
Drag one .pptx file or an entire folder of presentations onto Convertessa. Batch mode processes every file in the folder in a single pass.
Pick PDF from the output format list. Set quality to control how embedded images are rendered inside the PDF pages.
Click Convert. PDFs are written to the same folder as your originals. EXIF and metadata are stripped from any images embedded in the presentation.
Images, audio, video, documents, archives and eBooks — all converted natively, right on your Mac.
Pick a format you have — see everything Convertessa can turn it into.
Convert hundreds of files at once with per-type group defaults and individual overrides.
First-class support for HEIC, AVIF and WebP — encode and decode, both ways. Read JPEG XL and a dozen more modern formats too.
Drop files anywhere on the window. Native, instant, and exactly what you’d expect on a Mac.
Dial in compression, resolution and bitrate. Keep originals pristine or shrink for sharing.
Never overwrite a file by accident. Convertessa appends safe suffixes automatically.
Every job is logged locally. Re-run a previous conversion or revisit recent outputs in a click.
Bundle your converted files straight into a single ZIP, TAR or 7z — packaged and ready to share the moment a job finishes.
Right-click any file in Finder and choose Convert. A Quick Action handles it on the spot — no need to open the app first.
Shrink Convertessa to a tidy mini window that tucks into a corner — just a drop zone and a format picker for quick, one-off conversions.
No cloud. No account. No upload. Every conversion happens entirely on-device, using the power already in your Mac. What you convert is nobody’s business but yours.
Script conversions, wire them into your build, or batch a folder from the terminal. The same engine, no GUI required.
Read the full CLI documentation →Shrink Convertessa down to a small, focused window — drop, convert, done, with your recent conversions one click away.
macOS 14+ · Apple Silicon & Intel
New formats, new features, and fixes — every release, on the record.
No. Convertessa runs entirely offline on your Mac. Your .pptx files are read from disk and the resulting PDFs are written back locally — nothing is transmitted anywhere.
Yes. Drag a folder onto Convertessa or run convertessa ./slides/ --to pdf to batch-convert every .pptx in that directory in one pass.
Convertessa renders each slide as a PDF page, preserving the layout, fonts, and vector shapes as they appear in PowerPoint. Embedded image quality is controlled by the quality setting you choose before converting.