
Adobe Acrobat DC
iLovePDF
Smallpdf
PDF24 PDF Creator
PDF-XChange Editor
Sejda
PDF24
PDFsam Basic, a free, open source, multi-platform software designed to split, merge, extract pages, mix and rotate PDF files

Magic Flow
FocusBear.io
Llama Life
Forest App
TickTick
Blitzit
Balance: Mindful time tracking
Centered helps you get into a Flow State faster and stay there longer so you can do your best work.

Which is more popular?
Based on our record, PDFsam should be more popular than Centered. It has been mentioned 32 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | pdfsam.org | centered.app |
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| Platforms | — | |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
PDFsam is recommended for individuals and small businesses looking for an easy-to-use, cost-efficient PDF tool capable of handling everyday PDF manipulation tasks without the complexity or expense of more advanced software. It’s particularly suitable for users who require basic features and occasional PDF editing.
No analysis of Centered yet.
Walkthroughs and reviews on video.
How to Use PDFsam
More videos
Centered Review: Improve Productivity with AI Coaching and Focus Music
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using PDFsam and Centered. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


This is a simple open source Java pdf editor. The basic version allows you to edit the content and structure of pdf documents. Builds of this version are available for Windows, MacOS and Linux. PDFsam Enhanced version...
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Recommendations tracked on public social media and blogs since March 2021.


He shares insights into a few applications, like Hero (CAD application to calculate energy efficiency) and PDFSam (powerful and professional PDF editor). PDFSam had 100.000 downloads in April '24! - Source: dev.to / over 2 years ago
I find pdfsam to be the perfect offline tool for me on Windows. https://pdfsam.org And it's open source as well: https://github.com/torakiki/pdfsam. - Source: Hacker News / about 3 years ago
That might be fit for your purpose PDFSam. Source: over 3 years ago
- weak for bodydoubling method: I still need to use separate app for bodydoubling. i.e. cen****d.app. This bodydoubling app makes me to focus on task by sharing my current task with other users. This also has `always on top with... Source: over 3 years ago
Centered.app application helps me a lot to work and to stay focused. It seems - the best and only task management systems designed for people with ADHD. Source: about 4 years ago
The centered.app does look good and the most close to what I am looking for compared to the hundreds I have googled today, I am giving it a go, thank you! Source: about 4 years ago
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