r/pdf↗
r/PDF—The File Format
r/PDF is a community for users to ask questions and engage in discussions about creating, reading, and editing PDFs.
25k subscribers130 posts / mo in Sep 2026116 authors / mosince 2008
r/pdf has 25k members (+98% over the last 12 months). It gets about 130 posts a month from 116 people. Top topics: PDF Note-Taking Apps.
When to post on r/pdf
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How r/pdf has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/pdf
Top topics
Share of the subreddit's posts
- PDF Note-Taking Apps5.7%
Brands people mention
Most-mentioned brands and sites, last 12 months
Posting rules for r/pdf
Which post types r/pdf allows, the karma and account age it asks for, required flair, and every community rule — read from Reddit.
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How often posts get removed on r/pdf
The best day and hour for r/pdf, how many posts moderators remove and which kinds, the shape of its year, and weekdays against weekends.
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What works on r/pdf
Title and body length that does well on r/pdf, and its mix of text posts, links, images, galleries and video.
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Who posts on r/pdf
Gender and age of the people who write on r/pdf, the countries and US states they live in, their jobs, and whether a few regulars carry the conversation.
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What people ask for on r/pdf
Requests for recommendations, help and alternatives on r/pdf, its signature words and phrases, the brands and sites people link with counts, and the tone of the comments.
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Subreddits like r/pdf
Communities that share topics, members or crossposts with r/pdf.
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See all of r/pdf
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research