PicoPDF
PicoPDF is a desktop PDF editor for Mac that lets you open, edit, sign, merge, compress, and reorganize PDF documents.
What is PicoPDF?
PicoPDF is a PDF editing app for Mac that helps users modify existing PDF documents without switching to a full office suite. It is published by NCH Software and is designed for common document tasks such as editing text, adding images, filling forms, signing files, and rearranging pages. The app is suited to home users, students, and office users who need to make direct changes to PDFs, prepare forms, or combine documents for sharing. PicoPDF also includes tools for merging, splitting, compressing, encrypting, and exporting PDF content, which makes it useful for everyday document cleanup and simple workflow tasks. On macOS, it fits best as a focused utility for people who regularly work with PDFs and want offline editing on their computer.
Key features
- Edit existing text and images in PDF files
- Add text, images, highlights, watermarks, and bookmarks
- Fill out forms and add digital signatures to documents
- Merge, split, reorder, and crop PDF pages
- Compress and encrypt PDF files for sharing or storage
- Use OCR tools for scanned document workflows
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Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Mostly safe
PicoPDF is a legitimate PDF editor and its file access is consistent with its purpose: it needs to open, edit, save, and export documents you choose. Documents you load into the app may contain sensitive personal or business information, so use it with the same care you would use for any document editor. If you work with confidential PDFs, save edited copies in trusted folders and review overwrite or export choices before replacing originals.
Recommendation: Keep PicoPDF if you use it to edit or sign PDFs on your Mac. If you no longer work with PDF documents or prefer another editor, you can remove it like other third-party apps; doing so may also remove its saved settings and helper files.
Common paths
/Applications/PicoPDF.app
Support paths
~/Library/Application Support/PicoPDF
Preference paths
~/Library/Preferences/com.nchsoftware.picopdf.plist
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