Your files stay on your Mac.
Converting an Excel Workbook to PDF renders each sheet as a fixed-layout page, locking in formatting so the document looks identical on any device. Convertessa runs entirely on your Mac — files are never uploaded — and strips document metadata from every output file. Set quality to control how embedded images are compressed in the resulting PDF.
Drag one .xlsx file or an entire folder of workbooks onto Convertessa. Batch mode processes every file in one pass without repeated clicks.
Pick PDF from the output format list. Set quality to adjust how embedded images are compressed inside the output PDF — text and vector elements are unaffected.
Click Convert. Convertessa renders each sheet to a fixed-layout PDF page, strips document metadata, and saves the files alongside the originals — no upload, no wait.
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. Your .xlsx files are read and written locally — nothing is uploaded to any server at any point.
PDF is a lossy target when it contains embedded images. The quality setting controls how those images are compressed inside the PDF. Text and vector elements are rendered at full fidelity regardless of the quality value.
Yes. Drop a folder onto Convertessa or pass a directory path in the CLI: convertessa ./spreadsheets/ --to pdf. Every .xlsx file in the folder is converted in one run.