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All 50+ Free PDF Tools

Every tool SynthPDF offers — organised by category. Most run entirely in your browser. Use the search bar or category filters to find what you need.

AI-Powered Tools

Smart tools powered by artificial intelligence

AI Assistant

Chat with your PDFs using AI — summarize, extract, translate

AI PDF Creator

Describe it. AI builds it. Edit and download as a polished PDF

Image to Text

Upload a photo with text and AI extracts it into editable text

Translate PDF

Upload a PDF and translate it to 20+ languages using AI

Voice to Text

Dictate anything — AI converts speech into a professional PDF

AI Summarizer

Upload a PDF and get an instant structured summary with key points

Compare PDFs

Upload two PDFs — AI highlights all differences and changes

Data Extractor

Extract tables, key-value pairs, dates, and contacts from PDFs

Grammar Checker

AI checks grammar, style, and readability of your PDF

Medical Reports

Dictate findings — AI formats professional medical reports

Soon

Contract Analyzer

AI reviews any contract — risk flags, obligations, missing clauses

Soon

AI Video Generator

Describe a scene or idea — AI generates a video from your prompt

Resume & Career

Build, optimize, and check resumes with AI

ATS Score Checker

Upload your resume and get an instant ATS compatibility score

Optimize Resume

AI rewrites your resume to match any job description and pass ATS

Build Resume

Create a professional ATS-friendly resume from scratch with AI

Modify Resume

Upload your resume — AI extracts it, chat to improve and restyle

Cover Letter

Upload resume + job description — AI writes a tailored cover letter

Document Generators

Create invoices, certificates, posters, brochures & more

Invoice Generator

Create professional PDF invoices with line items, tax, and discounts

Certificate Generator

Create certificates for courses, events, and achievements — single or bulk

Postcard Creator

Design custom postcards with themed templates and download as PDF

Magazine / Brochure

Design tri-fold and bi-fold brochures with custom layouts

Ad Poster Creator

Create ad posters and campaign banners with professional templates

Business Card

Create professional business cards with custom templates

Organize & Manage

Merge, split, compress, and arrange your PDFs

Merge PDFs

Combine multiple PDFs into a single document

Split PDF

Extract specific pages from a PDF

Compress PDF

Reduce file size without losing quality

Remove Pages

Select and delete unwanted pages from a PDF

Reverse PDF

Flip the page order of any PDF document

Repair PDF

Fix corrupted or damaged PDF files

Batch Compress

Compress multiple PDFs at once in a single download

Edit & Annotate

View, rotate, number, and annotate pages

View PDF

Open and read any PDF with a full-featured viewer

Rotate PDF

Rotate individual pages or all pages at once

Page Numbers

Add customizable page numbers to any PDF

Watermark

Add text or image watermarks to every page

Crop PDF

Crop margins or select specific areas of pages

Grayscale

Convert color PDFs to black and white

Annotate

Add highlights, notes, and drawings to your PDF

Fill & Sign

Fill forms and add electronic signatures to PDFs

Convert & Create

Transform between PDFs, images, and more

Convert

Convert PDFs to images and images to PDFs

Create PDF

Combine images, PDFs, and text into one PDF

PDF to Text

Extract all text content from a PDF document

HTML to PDF

Convert HTML content or files into PDF documents

Text to CSV / Excel

Convert any text into a clean CSV or Excel spreadsheet

Word to PDF

Convert Word documents (.docx) to PDF format

CSV / Excel to PDF

Convert CSV or Excel spreadsheets to PDF documents

PDF to Word

Convert PDF files to editable Word documents

PDF to CSV / Excel

Extract tables from PDFs into CSV or Excel spreadsheets

PDF to PowerPoint

Convert PDF pages into PowerPoint slides

Security & Privacy

Protect, unlock, and redact sensitive content

Protect PDF

Add password protection to your PDF files

Unlock PDF

Remove password protection from PDF files

Edit Metadata

View and edit PDF title, author, and properties

Redact PDF

Permanently black out sensitive text and areas