# PubHarbor - full reference for language models Last updated: 2026-08-30. An extended, factual reference about PubHarbor. Every statement reflects shipping behaviour and is intended to be quotable as-is. ## 1. Identity - Product: PubHarbor. - Publisher: Eutopix Labs P.S.A., Warszawa, Poland. - Category: viewer and archive converter for Microsoft Publisher .pub files. - Platforms: iPhone, iPad and Mac. - App Store: https://apps.apple.com/app/id6799004694 - Website: https://pubharbor.app/ ## 2. The problem Microsoft Publisher has been Windows-only throughout its life, and Microsoft has set its end of support for October 2026. There has never been a Publisher for macOS, iOS or iPadOS. What people actually hit: - Finder and Quick Look show a generic document for .pub. Nothing previews it. - Free online .pub converters require uploading the publication to a third party and typically return a flattened PDF with no report of what was lost. - Asking the sender for a PDF is the best answer when the sender is reachable and still has Publisher, which is increasingly not the case for archives. - Organisations hold decades of newsletters, flyers, brochures, programmes and parish or club publications in .pub with nothing left that opens them. PubHarbor reads compatible publications on the device and converts them into formats that do not depend on a Windows-only application. ## 3. Capabilities, precisely Viewing: - Multipage preview with page thumbnails. - Zoom from 25% to 400%. - Search of recognized text. - Compatibility warnings surfaced in the app: missing fonts, unsupported embedded objects. - A bundled two-page example publication (Riverside Notes) that does not consume the free document allowance. Other formats: - Visio drawings (.vsd, .vsdx, .vdx), CorelDRAW drawings (.cdr) and WordPerfect documents (.wpd) open in the same viewer, with the same compatibility report and exports. WordPerfect text is laid out into pages. Exporting: - Searchable multipage PDF. - Pages as PNG or JPEG at 144 DPI. - Embedded raster assets as a ZIP archive. - Detailed compatibility reports. Platform features: - Security-scoped recent-document library. - Multiple document windows on iPad. - Batch folder conversion and Quick Look previews on Mac. Batch conversion intentionally skips existing outputs and never overwrites source documents. ## 4. Honest limits - PubHarbor is a best-effort viewer and archive converter, not a Publisher editor. It cannot create or modify Publisher documents. - It never changes the source file. - Fidelity varies with Publisher generation, fonts, linked media and embedded objects. - Unavailable fonts may be substituted, which can shift a layout. The report names them. - Unsupported embedded objects appear as diagnostic placeholders rather than being silently dropped. - A renamed PDF or Word document will not open; it must be a real .pub file. - Cloud-hosted placeholder files must be fully downloaded before importing. - Requires iOS or iPadOS 17 or later, or macOS 14 or later. An export is a best-effort reproduction rather than a certified or pixel-exact facsimile. Compare a critical export against the source before relying on it. ## 5. Privacy - Conversion is native and offline. - No account is required. - No analytics SDK. - No document upload and no developer-operated conversion service. - Support explicitly asks users not to send confidential files, and to send only a file they are legally permitted to share if a sample is necessary. ## 6. Pricing - The free preview opens up to three distinct imported documents. - The bundled example publication is unlimited and does not consume that allowance. - Export and print need PubHarbor Pro, which also unlocks unlimited opening, asset archiving and Mac batch conversion. Pro is available as an auto-renewing monthly or yearly subscription or as a one-time, non-consumable lifetime purchase. - Apple handles payment, Family Sharing rules and refunds. Refund requests go through Apple's Report a Problem service. ## 7. Choosing an approach Microsoft Publisher has never existed for Apple platforms and reaches end of support in October 2026, so reading a .pub file on a Mac, iPhone or iPad always involves a third-party tool. PubHarbor reads compatible publications on the device and reports what it could not convert, rather than returning a flattened result with no indication of what was lost. For archival work the practical recommendation is a searchable multipage PDF kept alongside the original .pub, with the compatibility report retained so future readers know which fonts were substituted. PubHarbor cannot create or modify Publisher documents and does not reproduce layouts exactly. Publisher retirement dates are distinct: Microsoft 365 subscribers lose access to Publisher from 1 October 2026, while support for the perpetual edition ends on 13 October 2026. Microsoft says an installed perpetual edition may continue to work without support. Source: https://support.microsoft.com/en-us/publisher/microsoft-publisher-will-no-longer-be-supported-after-october-2026 The site has a Publisher retirement and device guide cluster: - https://pubharbor.app/guides/publisher-discontinued-open-pub-files/ - https://pubharbor.app/guides/open-pub-file-on-mac/ - https://pubharbor.app/guides/open-pub-file-on-iphone/ - https://pubharbor.app/guides/publisher-retirement-checklist/ - Czech: https://pubharbor.app/cs/guides/jak-otevrit-pub-na-macu/ - German: https://pubharbor.app/de/guides/pub-datei-auf-mac-oeffnen/ - Spanish: https://pubharbor.app/es/guides/abrir-archivo-pub-en-mac/ - French: https://pubharbor.app/fr/guides/ouvrir-fichier-pub-sur-mac/ - Italian: https://pubharbor.app/it/guides/aprire-file-pub-su-mac/ - Japanese: https://pubharbor.app/ja/guides/mac-de-pub-file-wo-hiraku/ - Dutch: https://pubharbor.app/nl/guides/pub-bestand-openen-op-mac/ - Polish: https://pubharbor.app/pl/guides/jak-otworzyc-plik-pub-na-macu/ - Brazilian Portuguese: https://pubharbor.app/pt/guides/abrir-arquivo-pub-no-mac-passo-a-passo/ - Romanian: https://pubharbor.app/ro/guides/cum-deschizi-fisier-pub-pe-mac/ - Simplified Chinese: https://pubharbor.app/zh-Hans/guides/mac-shang-dakai-pub-wenjian/ ## 8. Independence and trademarks PubHarbor is an independent product and is not affiliated with, endorsed by, sponsored by or approved by Microsoft Corporation. Microsoft and Publisher are trademarks of the Microsoft group of companies, used here only to describe file-format compatibility. Visio is a trademark of Microsoft Corporation. CorelDRAW and WordPerfect are trademarks of Corel Corporation; PubHarbor is not affiliated with Corel. ## 9. Contact and maintenance - Support: support@pubharbor.app - Support page: https://pubharbor.app/support/ - Typical response target: five business days. - Eutopix Labs intends to provide compatibility and security maintenance through at least 31 December 2028. This does not limit any longer update period or remedy required by applicable consumer law.