Side by side
Open Satchel vs ZonePDF
Both stand on pdf editors. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxMacWindows
Open Satchel covers core document-production tasks on three desktop platforms and offers a no-price-listed Community Edition under AGPL terms. Organizations needing non-AGPL use, larger deployments, or engine licensing face separately priced plans.
Visit Open Satchel Free plan AndroidExtensioniPhone+3
ZonePDF combines browser PDF tools, an AI assistant, and a local-processing desktop app. Check the plan terms before paying, and consider whether its lack of OCR or API access matters for your workflow.
Visit ZonePDFThe facts
| Open Satchel | ZonePDF | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac, Windows | Android, Extension, iPhone, Mac, Web, Windows |
| Lowest paid plan | Nonprofit / education: $2,500 a year | See the plans |
| Plans published | 9 | 6 |
| Maker | Open Satchel | Not published |
| Website | opensatchel.dev | zonepdf.com |
| On pdf editors | #35 of 104 | #39 of 104 |
Open Satchel: what it does well
- Runs on Linux, macOS, and Windows
- Includes OCR and PDF conversion
- Offers annotation and form tools
- Community Edition has no listed price
- Provides separate engine licensing options
What to know first
- AGPL-3.0-only Community Edition terms
- Paid organization plans start at $2,500 a year
- Enterprise pricing rises with organization size
- Some licensing requires application or custom contract
ZonePDF: what it does well
- Free plan available
- Batch conversion is supported
- Imports from and saves to Google Drive and Dropbox
- Desktop app can process files locally
- Uploaded files are deleted within eight hours
What to know first
- No OCR conversion
- No API access
- No free trial
- AI use sends document text to a third-party provider
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