Built-in phone apps open PDFs, but specialist readers offer extra tools
Most smartphones can open PDFs using built-in apps, so a dedicated reader is not essential if you mainly view documents. Specialised readers can make PDFs easier to read on a small screen and offer tools that matter when you need to fill in forms, sign, annotate, edit or create files.
PDF stands for Portable Document Format, developed by Adobe in the 1990s to share documents across different devices and software; it is now maintained by the International Organization for Standardization. iPhones include Preview, while Pixel and Galaxy phones can use Google Drive. The article advises checking that apps come from reputable developers and taking care before opening files, as PDFs and reader apps can be targets for hackers.
In short
- Built-in phone apps are usually enough to read PDFs.
- Dedicated readers help with signing, forms and annotations.
- Use trusted apps and be cautious with downloaded files.
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The case for
A dedicated PDF reader can be worthwhile for people who regularly work with documents on a phone, since features such as signing, annotating, filling forms and editing can save time and make small-screen reading easier. Choosing a reputable app with the tools they need may offer practical benefits beyond simply opening a file.
The case against
For people who mainly view PDFs, built-in apps already handle the essential task, so installing a specialist reader may add little value. Keeping to familiar, reputable software can also avoid the extra effort of choosing another app and reduce exposure to risks from untrusted apps or files.
Explained simply
PDFs are a document format designed to look consistent across different devices and software. Adobe developed the format in the 1990s, and it is now maintained by the International Organization for Standardization.
Many phones include a way to view PDFs: iPhones have Preview, while Pixel and Galaxy phones can use Google Drive. Dedicated PDF readers may add tools for filling in forms, signing, making notes or editing documents.
PDF files and reader apps can be targets for hackers, so it is sensible to choose apps from reputable developers and take care before opening files.
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Originally published by Engadget as “What is a PDF reader and do you really need a dedicated one on your phone?”.