
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
LightPDF records 1,742,568 monthly visits with -15.3% month-over-month growth and Freemium pricing. TransGull records 48,182 monthly visits with +49.7% growth and Freemium, Paid pricing.
AI translation for conversations, live speech, video and images
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | lightpdf.com | transgull.com |
| Pricing Model | Freemium | Freemium, Paid |
| Monthly Visits | 1.74M (1,742,568) | 48.18K (48,182) |
| MoM Traffic Delta | -314.58K (-15.3%) | +16.01K (+49.7%) |
| Primary Market & Share | 🇮🇳 India (24.9%) | 🇰🇷 South Korea (19.9%) |
| Direct Visits / mo | 442.07K | 6.01K |
| User Rating | 4.2 | 4.2 |
| Supported Platforms | Website | Website |

Free AI-powered PDF editor, converter and reader for every device
Upload a PDF and ask questions in natural language, follow up on details and see which passages the answers came from. A separate chat mode works with YouTube videos.
Translate whole documents, including scanned and image-based PDFs, into 20+ languages while keeping the original formatting and layout intact.
Convert invoices, receipts, bank statements and purchase orders into structured, editable Excel files automatically.
Edit text and images, OCR scanned pages, convert to and from Office formats, then merge, split, compress, watermark, sign and annotate.
AI translation for conversations, live speech, video and images
The core engine handles conversation, speech, image, video and document translation across 47 languages, with context-aware phrasing that sounds natural.
Follow lectures, tours and meetings with live speech translation that can be read on screen or heard through earphones as audio output.
Translate YouTube and local videos in one click and follow foreign-language live streams with real-time bilingual captions.
Point at menus, signs and vertical text to get accurate image translation, and convert documents from one language to another.

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

SpecialistEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
SpecialistEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
SpecialistUnlimited AI transcription of audio and video in 98+ languages
SpecialistUnlimited AI transcription of audio and video in 98+ languages
Offers a completely free PDF editing and AI assistant experience, but lacks some of LightPDF's cloud-native collaboration features.
Offers a robust desktop suite for OCR and editing, but requires software installation unlike cloud platforms.
Offers a robust desktop suite for OCR and editing, but requires software installation unlike cloud platforms.
AI translation for text, images, documents and speech in 100+ languages
AI translation for text, images, documents and speech in 100+ languages
SpecialistLive AI interpretation, transcription, subtitles and dubbing in 125+ languages
SpecialistLive AI interpretation, transcription, subtitles and dubbing in 125+ languages

Provides quick browser-based PDF editing and e-signatures, but has a less advanced conversational AI assistant.
Provides quick browser-based PDF editing and e-signatures, but has a less advanced conversational AI assistant.

Provides a more polished cross-platform desktop PDF editing suite, but requires a paid upgrade for full AI features.
Offers a streamlined conversational interface for querying PDFs, but provides fewer document editing and conversion utilities.
SpecialistProfessional AI translation for text, documents, images and audio
SpecialistProfessional AI translation for text, documents, images and audio