# LightPDF vs SciFig

LightPDF records 1,742,568 monthly visits with -15.3% month-over-month growth and Freemium pricing. SciFig records 91,473 monthly visits with +4.7% growth and Freemium pricing.

| Metric | [LightPDF](https://openaitools.app/tool/lightpdf-com) | [SciFig](https://openaitools.app/tool/scifig) |
| :--- | :--- | :--- |
| Website URL | https://lightpdf.com | https://scifig.ai |
| Categories | AI PDF Editor, AI PDF, AI PDF Summarizer, AI OCR | AI Image Generator, AI Background Remover, AI Image Enhancer, AI Image Upscaler |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 1,742,568 | 91,473 |
| MoM Growth Rate | -15.3% | +4.7% |
| Primary Market | India | United States |
| Direct Visits | 442,074 | 23,551 |
| Review Score | 4.2 | 4.1 |
| Saved Count | 8 | 1 |
| Supported Platforms | Website | Website |

## LightPDF

LightPDF positions itself as an all-in-one document workspace rather than a single-purpose converter. The classic side of the product covers the essentials most people need every day: viewing and editing PDF text and images, converting between PDF and Office/image formats, OCR for scanned files, merging, splitting, compressing, watermarking, signing and annotating. Because everything runs in the browser with companion apps for Windows, Mac, iOS and Android, the same account and files travel with you across devices.

The AI layer is where the product has expanded most. An AI agent lets you chat with an uploaded document, ask follow-up questions and trace answers back to citations, while a separate chat experience works on YouTube videos. Document translation preserves the original layout across 20+ languages, including scanned and image-based PDFs, and structured data extraction turns invoices, receipts, bank statements and purchase orders into editable spreadsheets. Rounding out the suite are an AI PPT generator, mind-map and summary generation, watermark and sticker removal, text and logo erasing, document enhancement for scanned pages and an AI invoice generator.

Pricing follows a freemium model with a free tier (10MB file limit, watermark on some exports) and paid plans that add unlimited file sizes, batch processing, cloud storage and monthly AI credits. Individual subscriptions start around $5.99 per month, with a yearly option near $15.99 and a one-time lifetime plan; credits are consumed per AI action, so heavy AI users can top them up. Team, business and education plans are available on request.

**Pricing & Plans:** Freemium. A free plan covers basic PDF tools with a 10MB file cap; paid plans start around $5.99/month, with a yearly tier and a one-time lifetime option. AI features consume monthly credits that differ by plan.

- **AI document agent and chat:** 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.
- **Layout-preserving translation:** Translate whole documents, including scanned and image-based PDFs, into 20+ languages while keeping the original formatting and layout intact.
- **AI data extraction to spreadsheets:** Convert invoices, receipts, bank statements and purchase orders into structured, editable Excel files automatically.
- **Full PDF editing and conversion suite:** Edit text and images, OCR scanned pages, convert to and from Office formats, then merge, split, compress, watermark, sign and annotate.
- **Cross-platform access:** One account works on web, Windows, Mac, iOS and Android, so documents and paid features follow you between devices.

**Strengths:** Very broad toolkit that covers both everyday PDF chores and advanced AI document tasks; Free tier is usable for light jobs, and the paid plans are cheaper than many competing PDF editors; Layout-preserving translation and AI data extraction handle scanned documents that trip up simpler tools; One subscription covers five platforms, including desktop and mobile apps

**Limitations:** Free plan caps files at 10MB and adds watermarks on some outputs; AI features run on a credit system, so heavy usage means top-ups or a higher tier; Advanced AI operations like text editing or logo removal consume credits quickly

[Profile (Markdown)](https://openaitools.app/tool/lightpdf-com.md)

## SciFig

SciFig is built around the observation that most papers need more than one kind of figure, and that juggling several unrelated tools for illustrations, plots and diagrams wastes time. Its Illustration workspace accepts six input modes: a written description, a rough sketch, a lab photo, a PDF of an existing paper, a reference figure to imitate in style, and photo-to-figure conversion. From any of these it produces scientific images of mechanisms, pathways, cross-sections and graphical abstracts, drawing on hundreds of templates across multiple disciplines.

The DataChart workspace is the quantitative side. Upload a CSV or Excel file, describe the chart you want, and SciFig plots it in journal-consistent styles with colorblind-safe palettes. The chart library is deliberately deep and organized by research need — basic and trend charts, distribution and statistics plots such as violin, box and raincloud charts, relationship and model plots like regression and Bland–Altman, biomedical staples including volcano plots and Kaplan–Meier survival curves, plus flows and structures such as heatmaps and Sankey diagrams. Charts ship with the statistics and the Python code that produced them, which matters when a reviewer asks how a figure was made.

FlowChart covers the qualitative diagrams: PRISMA and CONSORT screening flows, model architectures, cycle diagrams and research timelines, described in plain language and returned as editable diagrams rather than static images. Across all three engines the editability is the real differentiator — you can retype a label, redraw one region, switch journal style or palette, or move a box and its arrows without regenerating the whole figure. Export options include editable PPTX, layered SVG, 8K PNG/JPG, and for data charts also PDF, EPS and TIFF, so figures survive poster, manuscript and presentation formats alike.

**Pricing & Plans:** Freemium. New users start with up to 150 free credits and can reach about 250 free credits on day one when joining through an invite, with no credit card required. Paid plans and credit packs are available, and the site states paid credits never expire. Pricing changes with promotions, so check the pricing page for current plan details.

- **Three dedicated engines: Illustration, DataChart and FlowCha:** Three dedicated engines: Illustration, DataChart and FlowChart for scientific images, data plots and protocol diagrams respectively
- **Six illustration input modes: text, sketch, photo, PDF, refe:** Six illustration input modes: text, sketch, photo, PDF, reference figure and photo enhancement, backed by hundreds of discipline-specific templates
- **Data charts straight from CSV or Excel across around 50 char:** Data charts straight from CSV or Excel across around 50 chart types, including volcano plots, survival curves, forest plots and heatmaps
- **Fully editable output: change any label, recolor, redraw a r:** Fully editable output: change any label, recolor, redraw a region or shift a box and its arrows without regenerating the figure
- **Researcher-friendly export: layered SVG, editable PPTX, 8K P:** Researcher-friendly export: layered SVG, editable PPTX, 8K PNG/JPG, plus PDF, EPS and TIFF for charts, with journal styles and colorblind-safe palettes

**Strengths:** Purpose-built for research figures rather than generic AI image generation, with journal styles and colorblind-safe palettes; Strong editability after generation, so a figure can be refined instead of regenerated from scratch; Data charts are plotted from your actual numbers and come with the statistics and Python code; Wide export coverage including layered SVG, editable PPTX and print-grade TIFF/EPS

**Limitations:** Scientific accuracy still depends on your input: descriptions and extracted text must be checked before publication; Credit-based pricing means heavy figure production can consume the allowance quickly; The enormous tool and template catalog can feel overwhelming for a first-time user

[Profile (Markdown)](https://openaitools.app/tool/scifig.md)

## Frequently Asked Questions

### How do LightPDF and SciFig compare in monthly traffic?

LightPDF has 1,742,568 monthly visits, while SciFig has 91,473. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

LightPDF has a month-over-month growth rate of -15.3%; SciFig has +4.7%.

### How does pricing compare?

LightPDF: Freemium. Freemium. A free plan covers basic PDF tools with a 10MB file cap; paid plans start around $5.99/month, with a yearly tier and a one-time lifetime option. AI features consume monthly credits that differ by plan. SciFig: Freemium. Freemium. New users start with up to 150 free credits and can reach about 250 free credits on day one when joining through an invite, with no credit card required. Paid plans and credit packs are available, and the site states paid credits never expire. Pricing changes with promotions, so check the pricing page for current plan details.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 2 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | [.md](https://openaitools.app/tool/claude-2.md) |
| 3 | [DeepL](https://openaitools.app/tool/deepl) | 95,110,871 | -1.7% | Freemium | Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages. | [.md](https://openaitools.app/tool/deepl.md) |
| 4 | [PDFgear](https://openaitools.app/tool/pdfgear) | 2,845,280 | -3.4% | Free | Offers a completely free PDF editing and AI assistant experience, but lacks some of LightPDF's cloud-native collaboration features. | [.md](https://openaitools.app/tool/pdfgear.md) |
| 5 | [PDNob PDF Editor](https://openaitools.app/tool/pdnob-pdf-editor) | 2,376,518 | +1.2% | Freemium, Free Trial, Paid | Offers a robust desktop suite for OCR and editing, but requires software installation unlike cloud platforms. | [.md](https://openaitools.app/tool/pdnob-pdf-editor.md) |
| 6 | [pdf.net](https://openaitools.app/tool/pdf-net) | 1,257,131 | -22.3% | Freemium, Free | Provides quick browser-based PDF editing and e-signatures, but has a less advanced conversational AI assistant. | [.md](https://openaitools.app/tool/pdf-net.md) |
| 7 | [UPDF AI](https://openaitools.app/tool/updf-ai) | 1,050,387 | -7.2% | Freemium, Free Trial, Paid | Provides a more polished cross-platform desktop PDF editing suite, but requires a paid upgrade for full AI features. | [.md](https://openaitools.app/tool/updf-ai.md) |
| 8 | [ChatPDF](https://openaitools.app/tool/chatpdf) | 1,044,477 | -3.7% | Freemium | Offers a streamlined conversational interface for querying PDFs, but provides fewer document editing and conversion utilities. | [.md](https://openaitools.app/tool/chatpdf.md) |
| 9 | [PDF.ai](https://openaitools.app/tool/pdf-ai) | 387,819 | -5.5% | Freemium, Free Trial | Excels at developer API integration and chatting with PDFs, but lacks comprehensive traditional PDF editing tools. | [.md](https://openaitools.app/tool/pdf-ai.md) |
| 10 | [ConceptViz](https://openaitools.app/tool/conceptviz) | 157,061 | +28.1% | Freemium, Paid | Editable scientific figures and graphical abstracts from a prompt | [.md](https://openaitools.app/tool/conceptviz.md) |

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Source: https://openaitools.app/compare/lightpdf-com-vs-scifig

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)