PDF.ai vs Perplexity AI vs ReadDocs vs Smallpdf AI PDF

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
PDF.ai
vs
Competitor 1
Perplexity AI
Competitor 2
ReadDocs
Competitor 3
Smallpdf AI PDF
Compare
4 tools · best value per row highlighted
Your tool PDF.ai
pdf.ai
PDF.ai lets you chat with any PDF: ask questions, get summaries and find answers inside the document.
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Competitor Perplexity AI
perplexity.ai
Search that gives answers instead of links
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Competitor ReadDocs
readdocs.co.uk
Upload a PDF contract and ReadDocs spits out a one-minute summary, bullet points, and answers to specific questions you ask
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Competitor Smallpdf AI PDF
smallpdf.com
Smallpdf AI PDF, also called Chat with PDF, lets you upload a document and talk to it.
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Traffic estimated monthly website traffic
Monthly visits
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95.2Mvisits/mo
744visits/mo
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MoM change
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▼ 8.2%
▲ 141.6%
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6-month growth
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-42.9%
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Global rank web
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#446
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Avg. last 3 months
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104.9M
384
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Bounce rate lower is better
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33%
39%
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Pages / visit
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3.6
1.1
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Visit duration
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4m 18s
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Traffic sources
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● Direct 94% · ● Referral 4%
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PDF.aiPerplexity AIReadDocsSmallpdf AI PDF
047.3M94.5M141.8M189MPerplexity AI · 189MPerplexity AI · 179.6MPerplexity AI · 170.1MPerplexity AI · 153.8MPerplexity AI · 166.8MPerplexity AI · 154.9MPerplexity AI · 138.1MPerplexity AI · 115.8MPerplexity AI · 103.8MPerplexity AI · 95.2MReadDocs · 101ReadDocs · 308ReadDocs · 7441001K10K100K1M10M100M1BPerplexity AI · 189MPerplexity AI · 179.6MPerplexity AI · 170.1MPerplexity AI · 153.8MPerplexity AI · 166.8MPerplexity AI · 154.9MPerplexity AI · 138.1MPerplexity AI · 115.8MPerplexity AI · 103.8MPerplexity AI · 95.2MReadDocs · 101ReadDocs · 308ReadDocs · 744Nov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$49per month · free tier available
$20per month · free tier available
Free tier
€6per month · free tier available
Free tier
Free trial
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API access
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Plans
Free FreeStarter $49/moPro $99/moScale $249/mo+1 more
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Free FreePro £9.99/moBusiness £29/mo
Pro €7.50/moTeam (2-100 users) €6/mo
Capabilities input → output
Input
TextDocuments
DocumentsImagesTextCode
TextImagesDocuments
TextDocuments
Output
TextData
CodeText
Text
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Chatbots & CompanionsEducation & LearningLifestyle & EntertainmentProductivity & Office+13 more
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
10
10
13
8
Summarizing
PDF analysis
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PDF summaries
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Document summarization
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Interactive PDF processing
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Document chat
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PDFs
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Document data extraction
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OCR
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AI search
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Document q a
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Document summaries
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Research
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Search engine
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APIs
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Chatbots
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Data extraction
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Document processing
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Official documents q a
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Research papers
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Summaries
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Homework assistance
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Literature reviews
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Meeting summaries
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Writing
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YouTube summaries
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 3
▲ 0
▲ 0
Saves
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Reviews
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Prompts
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Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.