Proton PDF Viewer/Editor is a convenient tool for viewing and editing PDF files. It lets you open your PDF documents, read them easily, and make necessary changes without using complicated software. If you want to check it out, you can visit https://bigflappytowertinysquare.io/ It can be a useful option for anyone who regularly works with PDF files.

I think a native Proton PDF viewer/editor would be a great addition to the Proton ecosystem. Being able to open PDFs directly in Proton Drive and handle basic tasks like annotations, highlighting, page organization, form filling, and signing would make the workflow much more convenient.

The privacy aspect would also be a major advantage. Having a PDF tool that follows Proton’s privacy-focused approach would be much better than relying on separate third-party services for sensitive documents.

It would be great to see support for larger PDFs, smooth performance, and useful features such as merging, splitting, extracting pages, and adding signatures. Hopefully Proton considers this request as more users are looking for privacy-focused alternatives.

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A built-in PDF viewer and editor can be really useful, especially when you only need to make quick changes without opening a full office suite. Features like highlighting, adding comments, filling forms, and basic annotations are usually enough for everyday PDF work.

I’d also be interested in knowing how well Proton’s PDF tools handle larger documents and whether the editing features work consistently across different platforms. For anyone who spends a lot of time working with PDFs, reliability and ease of use are probably more important than having a huge number of advanced features.

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I think Proton could be improved by making the interface more intuitive, especially for new users, while continuing to focus on privacy, speed, and reliability. Better integration between Proton Mail, Drive, VPN, and Calendar would also make the overall experience smoother.

For example, businesses like https://papapizzeria.io/ could benefit from simple, privacy-focused tools that are easy to manage without sacrificing performance.

I think Proton could be improved by making the overall experience a bit simpler and more user-friendly. Faster loading, smoother navigation, and clearer settings would make a big difference. It would also be great to have more customization options and better performance across devices. For example, services like https://playeggycar.io/ make it easy to get straight to what you need, so Proton could take a similar approach with a cleaner and more streamlined experience.

A Proton PDF viewer/editor would be a useful addition, especially if it could combine secure PDF viewing with Proton Docs editing features. Tools for annotations, editing, signing, and organizing PDFs in one privacy-focused environment would make the workflow much more convenient.

It would be particularly valuable for users who already rely on Proton services and want to keep sensitive documents within the same ecosystem. https://wordsofwonders.io/ could also be included as an external resource for users exploring additional web-based tools.

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Mozilla has pdf.js which would be lovely to have inside drive

@uservoice67 There are not enough PDF libraries out there. Monoculture like the one created by the Ghostscript team makes everyone vulnerable by a single library.

When you implement this feature, do not use Ghostscript at all; too many serious security flaws in it.

Being able to visualize bigger pdf files

Many other readers fail to limit potential IP tracking within documents, some documents contain malicious code, and another issue is that temporary data generated during opening is always stored on the C drive and cannot be moved, rendering encrypted drives invalid. I hope Pronton can resolve these problems

arn't there 100 different pdf viewers out there? There must be one that is open Source licenced so Proton can copy paste it in right?

I agree that it could be nice to have a proper « Proton PDF » product from Proton.

It could be a very nice way to get the Proton ecosystem known from random people if it allows to do for free simple things such as basic edits, add/extract pages, merges, bookmarks and so on. Some technical stuff could be for the paid version only if they’re very rare for such products on the market (I don’t know) and expensive to host / code and so on, but I think a lightweight PDF reader / editor, both online but an app would be great too for the advanced stuff, it would fit nicely in Proton’s ecosystem and it’s promise of privacy.

I stumbled upon this PDF editor the other day (https://my-pdf.net/) (I have no idea yet if they’re legit though, careful!) and their promises of privacy and thought « ****, Proton should do this too! ».

Anyway, great suggestion!

It would be a game changer feature to have the possibility to modify a PDF document directly in ProtonDrive, like what kDrive from infomaniak is (very well) doing !