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Pdf annotation
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Hari Krishnan R U🙏 1 karmaMar 29, 2026@GistrGistr has been a game changer for processing long YouTube videos and PDFs - saves hours and actually helps you retain what you consume. -
Verified tools
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I’ve been using it for a month now and I have decided to keep it for a year. There definitely are some kinks they can still work out like file management, but it’s very good at it’s core function: it generally does a good job answering questions and most times identifies PDFs automatically and correctly. The browser plugin works great, and it’s very nice that Papers allows you to add your university’s library API so you can automatically download PDFs that are accessible through your institution (sometimes it refuses to download some papers, so you just have to downlow it yourself and manually add it). The iPad and Android apps are serviceable. Every once in a while it will mess up the PDF identification, especially with papers from either very old sources or online-only journals. Things they must work on: * A much better system to annotate PDFs (the post-it type notes are cumbersome). * Introduce a notepad attached to each PDF or some way to easily link and save the AI’s output to the PDF. Currently, you have to add a little post it note and then paste the text there. * Keep the AI answers available after closing the documents. If you close the document by mistake or have several open and wish to close some, the ai conversation will be reset. * I REALLY wish that you could get citations and links to where the info was from extracted from PDFs. Currently, I have found Coral.ai does a much better job of showing you where the info came from and it even highlights it for you. Give it a try, their 30-day no credit card needed trial allowed me to truly test it, and now I’m a yearly subscriber looking forward for new additions and releases.
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🚀 Supercharge Your AI Workflow with Keymate! AI enthusiasts, researchers, and productivity power-users — meet Keymate, your new favorite AI-powered assistant to collect, manage, search, and chat with your digital knowledge. ✨ Why Keymate? 🔹 Collect any source – PDFs, Google Docs, YouTube videos, emails, web links — all in one private memory space. 🔹 Chat with your content – Ask complex questions and get grounded answers directly from your own documents. 🔹 Add notes and organize collections – Structure your memory the way you think. 🔹 Boost with AI context – Keymate uses a 128K context window and multi-LLM setup to deliver better, focused results. 🔹 Secure
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Paperguide: The All-in-One AI Research Assistant for Scientific ResearchOpen -
Chat with any PDF, ask questions, summarize and extract insights effortlessly.OpenThe maximum number of pdf pages for the free tier is 10, which is a bit small. Generally, I think people need this service for pdf documents over 50 pages or so. -
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The translation is good enough. It's free, so waiting longer for the result is not a problem
Other tools
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Not bad, its freemium and the feature is good like private pdf and support OCR
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Open - Didn't find the AI you were looking for?
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Open -
Good to use even for free. Gives answers related directly to the info in the document, along with references to pages where it can be found. Also does well at analyzing graphs and charts
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First week is free (hence 3 stars when it would have been 1 otherwise) then you have to pay £81 / year or £9 / month which for a light or occasional user is very expensive. There really needs to be a sensible ’document limit’ to back up the very good trial period.
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They started charging for documents , Please change from no pricing to freemium
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lmao, says its free, but takes u straight to a pay page as soon as you put ur email in. won't be surprised if it also signed my email up to a ton of newsletters. dont sign in to this ai site.
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Highly recommended. It saves a lot of time. Their PDF chat feature is very user-friendly.
