PDF Tools

Merge, split, compress, convert, and edit PDF files online for free.

59 tools available

Synthixx PDF Tools is a free online suite to merge, split, compress, convert, protect, OCR, and edit PDF files in your browser. No desktop install, no watermark on outputs, and uploads are scheduled for automatic cleanup after processing.

Start with high-intent tools like Merge PDF, Compress PDF, PDF to Word, and OCR PDF, or open AI PDF Studio for chat, summary, rewrite, and translation on a document. Every tool page includes how-to steps, FAQs, and related workflows so you can chain jobs without leaving the site.

This category hub is the pillar for our PDF topic cluster: transactional tool pages handle “do the job” intent; guides on the blog cover how-to and comparison queries. All content is English for an international audience.

Read PDF guides on the blog · Browse all tools

PDF Tools

Merge PDF

Combine multiple PDF files into one document.

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PDF Tools

Split PDF

Split PDF into multiple files by page range.

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PDF Tools

Compress PDF

Reduce PDF file size while maintaining quality.

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PDF Tools

PDF to Word

Convert text PDFs to Word (.docx). Scanned OCR coming soon.

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PDF Tools

Word to PDF

Convert Word DOCX and DOC files to PDF.

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PDF Tools

Excel to PDF

Convert Excel XLSX and XLS workbooks to PDF.

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PDF Tools

PDF to Excel

Extract PDF tables into editable Excel worksheets.

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PDF Tools

PowerPoint to PDF

Convert PowerPoint PPTX and PPT presentations to PDF.

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PDF Tools

PDF to PowerPoint

Convert PDF pages into a PowerPoint PPTX presentation.

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PDF Tools

HTML to PDF

Convert HTML and HTM documents to PDF.

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PDF Tools

PDF to HTML

Convert PDF text into a self-contained HTML document.

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PDF Tools

PDF to PNG

Convert PDF pages to high-quality PNG images.

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PDF Tools

PNG to PDF

Convert PNG, JPG, and WebP images into a PDF.

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PDF Tools

JPG to PDF

Convert JPG and JPEG images into a PDF.

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PDF Tools

PDF to JPG

Convert PDF pages to high-quality JPG images.

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PDF Tools

Delete PDF Pages

Remove selected pages from a PDF.

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PDF Tools

Extract PDF Pages

Extract selected PDF pages into a new file.

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PDF Tools

Reorder PDF Pages

Arrange PDF pages in any order.

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PDF Tools

Rotate PDF

Rotate selected PDF pages.

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PDF Tools

EPUB to PDF

Convert EPUB ebooks to PDF.

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PDF Tools

PDF to EPUB

Convert PDF documents to EPUB ebooks.

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PDF Tools

Crop PDF

Crop PDF pages by margins or box.

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PDF Tools

Protect PDF

Encrypt a PDF with a password.

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PDF Tools

Unlock PDF

Decrypt a password-protected PDF.

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PDF Tools

Remove PDF Password

Strip password protection from a PDF.

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PDF Tools

Add Page Numbers

Add page numbers to a PDF.

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PDF Tools

Add Background

Add a color or image background to PDF pages.

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PDF Tools

Add Header & Footer

Add header and footer text to PDF pages.

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PDF Tools

Add Watermark

Add a text watermark to PDF pages.

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AI PDF Tools

AI PDF Studio

All-in-one AI chat, summary, Q&A, translate, and rewrite for PDFs.

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PDF Tools

Bulk Compress PDF

Batch-compress PDFs into a ZIP.

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PDF Tools

Bulk Merge PDF

Batch-merge multiple PDFs in one job.

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PDF Tools

Bulk OCR PDF

Batch OCR for scanned PDFs.

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PDF Tools

Bulk Split PDF

Batch-split PDFs into page files.

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PDF Tools

Bulk Watermark PDF

Batch watermark PDFs.

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PDF Tools

Combine Files to PDF

Merge images and PDFs into one file.

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PDF Tools

Compare PDFs

Diff two PDF documents.

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PDF Tools

Edit PDF

Add text overlays to PDF pages.

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PDF Tools

Flatten PDF

Flatten PDF forms into static content.

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PDF Tools

OCR PDF

OCR scanned PDFs into searchable documents.

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PDF Tools

Optimize PDF for Web

Linearize and compress PDFs for the web.

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PDF Tools

PDF Automation Workflow (Template)

Info-only workflow template — no file upload.

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PDF Tools

PDF Booklet Creator

Create a 2-up PDF booklet.

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PDF Tools

PDF Diff Viewer

View PDF differences side by side.

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PDF Tools

PDF Metadata Editor

Edit PDF document metadata.

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PDF Tools

PDF Metadata Remover

Remove PDF metadata.

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PDF Tools

PDF Page Size Converter

Convert PDF pages to a target paper size.

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PDF Tools

PDF to ZIP

Zip each PDF page as a separate file.

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PDF Tools

Redact PDF

Black-box redact regions on PDF pages.

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PDF Tools

Remove Background

Remove white backgrounds from PDF pages.

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PDF Tools

Remove Blank Pages

Remove blank pages from a PDF.

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PDF Tools

Remove Duplicate Pages

Remove duplicate pages from a PDF.

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PDF Tools

Remove Watermark

Best-effort annotation watermark cleanup.

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PDF Tools

Repair PDF

Repair corrupted PDF files.

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PDF Tools

Resize PDF Pages

Uniformly scale PDF pages.

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PDF Tools

Searchable PDF

Make scanned PDFs searchable with OCR.

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PDF Tools

Sign PDF

Visual signature stamp (not cryptographic PAdES).

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PDF Tools

Verify PDF Signature

Signature structure report — not certificate validation.

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PDF Tools

ZIP to PDF

Convert a ZIP of files into one PDF.

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PDF Tools FAQ

Are Synthixx PDF tools free?

Yes. PDF tools are free to use during launch with no watermark on standard outputs. Create an account only if you want Design cloud sync — guest use works for PDF jobs.

Is it safe to upload PDFs?

Transfers use HTTPS. Files are processed for your job and scheduled for automatic deletion afterward. Do not upload material your security policy forbids to any online tool.

Which PDF tool should I use first?

Merge to combine files, Split or Delete Pages to trim, Compress for email size, OCR for scanned text, PDF to Word to edit, and Protect when sharing externally.