The most viral posts using #pdf across TikTok, Instagram, X, Facebook and Pinterest — ranked by real engagement tracked by ViralHunt.
We track 120 posts using #pdf across 6 networks, carrying 650.1K engagement between them — an average of 5.4K per post.
It is used most on Bluesky: 100 of the 120 posts we hold, 83% of the total.
Where it performs hardest per post, though, is Pinterest, averaging 1.1K — so the tag is posted most in one place and lands best in another, which is exactly the difference worth knowing before choosing where to use it.
Ranking comes from the posts themselves rather than from how often the tag appears, and it is recalculated as new posts are collected. How we measure this →
Top #pdf posts ALL NETWORKS
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Most viral #pdf on Bluesky
See all 100 Bluesky posts and track new ones live.
Most viral #pdf on Pinterest
See all 15 Pinterest posts and track new ones live.
Most viral #pdf on Mastodon
Most viral #pdf on X / Twitter
Most viral #pdf on Instagram
Most viral #pdf on Douyin
#pdf in five questions
What is #pdf and where is it used?
A hashtag with 120 posts tracked by ViralHunt across 6 networks, mostly on Bluesky (100 posts). Those posts add up to 650.1K engagement, about 5.4K per post.
Where does #pdf perform best?
On Pinterest: 1.1K engagement per post on average, even though it is posted more on Bluesky. It is used in one place and works better in another.
When do people post with #pdf?
Mostly on Saturdays, around 09:00 UTC: 25% of the 118 dated posts fall in the three hours around that time. Posting when the tag is active is posting when someone is reading it.
Who uses #pdf most?
fabricframes.bsky.social (Bluesky, 33 posts), aitools2u.bsky.social (Bluesky, 9 posts), pdfcpu.bsky.social (Bluesky, 5 posts), machajdik.bsky.social (Bluesky, 5 posts), iam_chonchol (Pinterest, 3 posts), toolstrove (Pinterest, 2 posts).
When people post with #pdf
Hour of day and day of the week of the 118 dated posts carrying this tag (times in UTC). The busiest hour and day are marked.
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