Free, private and powerful PDF tools — right in your browser

Merge, split, rotate, compress, convert and OCR PDFs — 40+ free tools that run entirely in your browser. No upload, no sign-up, no limits.

Popular tools

• Merge PDF — Combine multiple PDFs in order into one file
• PDF to Office — Parse layout and export editable Word/Excel and image-based PPT (local approx.)
• Image to PDF — Combine JPG / PNG / WebP / BMP / SVG / TIFF images into one PDF
• Compress PDF — Lossless rewrite or raster compression to shrink size
• Sign PDF — Draw / type / image signature, click to place
• Rotate PDF — Rotate selected pages by 90/180/270 degrees

All tools

Organize

• Merge PDF — Combine multiple PDFs in order into one file
• Adjust Pages — Preview, rotate, duplicate and delete pages, insert blank pages, then export
• Split PDF — Split per page / by range, or manually in page mode
• Extract Pages — Pick pages in page mode then extract as a new PDF
• Rotate PDF — Rotate selected pages by 90/180/270 degrees
• Reverse Pages — Flip the page order of a PDF end to end
• Split Pages in Half — Cut every page into 2 halves or a 2×2 / 3×3 grid
• N-up PDF — Place 2/4/6/9/16 pages on one sheet for printing
• Grid Combine — Arrange pages from multiple PDFs on a grid sheet
• Overlay / Underlay — Overlay another PDF on top of, or beneath, the base document
• Remove Blank Pages — Detect blank pages by pixel entropy, review and delete

Convert

• PDF to Image — Export each page as JPG / PNG / BMP / TIFF
• Image to PDF — Combine JPG / PNG / WebP / BMP / SVG / TIFF images into one PDF
• PDF to Office — Parse layout and export editable Word/Excel and image-based PPT (local approx.)
• Office to PDF — Render Word/Excel/PPT to PDF at A4, keeping styles and Chinese (local approx.)
• Extract Text — OCR text from images or scanned PDFs and export to Word (runs locally)
• EPUB to PDF — Convert EPUB e-books to PDF, keeping chapters and selectable text
• MOBI to PDF — Convert MOBI / AZW / AZW3 e-books to PDF
• FB2 to PDF — Convert FictionBook (FB2) e-books to PDF
• XPS to PDF — Convert XPS / OXPS documents to PDF, keeping vector graphics
• RTF to PDF — Convert RTF rich text to PDF, keeping fonts and paragraph styles
• TXT to PDF — Typeset plain text into a paginated PDF with CJK support and custom font size
• JSON to PDF — Pretty-print JSON documents into a PDF with indentation preserved
• Markdown to PDF — Render Markdown headings, lists, quotes and code blocks into a PDF
• PDF to JSON — Export metadata, outline and per-page text as structured JSON
• PDF to Markdown — Export PDF text to Markdown with heading levels and list structure
• Extract Tables — Detect regular tables in a PDF and export them as CSV / JSON
• Extract Images — Pull embedded images out of a PDF and download them as a ZIP of PNGs
• Convert to Grayscale — Turn pages into greyscale — handy for cheap printing

Compress

• Compress PDF — Lossless rewrite or raster compression to shrink size
• Page Dimensions — Inspect page size, orientation and standard paper match, export JSON
• Fix Page Size — Resize every page to A4/Letter/custom, with fit or fill scaling
• View Metadata — Inspect title, author, keywords and dates, export as JSON
• Edit Metadata — Change title, author, subject, keywords, creator and producer
• Remove Metadata — Strip title, author, keywords, dates and XMP info
• Sanitize PDF — Remove scripts, attachments, links, forms and metadata in one pass

Sign & Annotate

• Sign PDF — Draw / type / image signature, click to place
• Add Stamps — Place preset or image stamps on any page, with position and opacity
• Edit PDF — Add text, highlights and box marks
• Add Watermark — Stamp text or image watermarks with tiling, rotation and CJK support
• Add Page Numbers — Add page numbers with position, format and start number options
• Bookmarks — Read existing bookmarks or build a new outline, Chinese supported
• Crop PDF — Drag a crop box or use presets — applies to all or selected pages
• Find & Redact — Search text and black it out, with per-match review
• Flatten PDF — Merge form fields into page content so they can no longer be edited
• Remove Annotations — Delete highlights, comments, links and all other annotations

Guides & tutorials

• How to Choose a PDF Compression Level: Lossless vs Lossy — What do "light", "smart" and "strong" actually do? Understand lossless rewriting vs lossy re-encoding, pick the right level for the job, and avoid files that grow when compressed.
• PDF to Word: Why the Layout Breaks — A PDF is a set of drawing instructions; a Word file is a flowing document. Conversion is reverse engineering — knowing what the converter rebuilds tells you what will break and how to avoid it.
• Why Your Files Never Leave the Browser: Local Processing & COOP/COEP — Web pages can run full applications. How WASM, Pyodide and cross-origin isolation make PDF engines run on your device — and why that beats upload-based tools for privacy.
• 7 Practical Tips to Improve OCR Accuracy — OCR is pattern recognition on an image — input quality caps the accuracy. From scan resolution to language packs, these seven habits noticeably improve results.
• Two Ways to Crop a PDF: View Crop vs Hard Crop — Trimming the page edges can be reversible or permanent. Understanding CropBox vs page rewriting is the difference between a tidy file and a privacy incident.
• Efficient Workflows for Merging and Splitting PDFs — Normalize pages before merging, decide naming before splitting — a few small habits eliminate most rework.
• Metadata Privacy Risks in PDFs — and How to Clean Them — Author names, editing software, full revision timelines… hidden fields can leak more than the visible text. Spend one minute checking metadata before publishing.
• Best Practices for Turning Scans and Photos into PDFs — From a pile of photos to one tidy PDF: page fitting, ordering, rotation and size control — get it right in one pass.