#1
Adobe Scan
Adobe · USA
Best for: Phone scanning to searchable PDF
Auto-detects edges, cleans the image and makes text searchable.
Mobile app
Best AI Tools for PDFs, Scanning and Documents (2026)
AI makes paperwork faster: scan clean PDFs with your phone, ask questions about long documents, and convert or compress files for online forms.
⚡ Quick answer: how to choose
- Ask questions about a PDF: Claude, ChatGPT or ChatPDF.
- Scan paper with your phone: Adobe Scan or vFlat.
- Compress to an exact size for job or visa portals: our free PDF compressor.
- Turn photos into clean photocopy-style PDFs: our free Image to PDF tool.
Top picks compared
Freemium
#2
vFlat Scan
VoyagerX · South Korea
Best for: Scanning whole books
Flattens curved book pages and scans quickly.
Mobile app
#3
ChatPDF
ChatPDF · Germany
Best for: Chat with a PDF
Upload a PDF and ask questions with page references.
Web
#4
iLovePDF
iLovePDF · Spain
Best for: Merge, split, convert PDFs
European all-in-one PDF toolkit on web and mobile.
Web Mobile app Desktop
Best on the web
- • ChatPDF — Chat with a PDF
- • iLovePDF — Merge, split, convert PDFs
Best as a phone app
- • Adobe Scan — Phone scanning to searchable PDF
- • vFlat Scan — Scanning whole books
- • iLovePDF — Merge, split, convert PDFs
Frequently asked questions
How do I compress a PDF to 100KB or 200KB?
Use a target-size compressor such as the free AI Orbit PDF Compressor: choose the size you need and download the result.
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