DoxDock — Private PDF & Image Tools Free, open-source PDF & image tools that run 100% in your browser — merge, split, compress, convert, edit, and sign. No uploads, no sign-up, fully private and offline.
All tools Edit PDF — Add text, drawings, highlights, shapes, images, and white-out to a PDF.Images → PDF — Combine multiple images into a single PDF, in your chosen order.PDF → Images — Export each page of a PDF as a PNG or JPEG image.Merge PDFs — Combine several PDFs into one. Drag to set the order.Split PDF — Extract page ranges or explode a PDF into single-page files.Rotate PDF — Rotate every page or selected pages by 90°, 180°, or 270°.Organize PDF — Reorder or delete pages visually using thumbnails.Compress PDF — Shrink a PDF by re-encoding page images and stripping metadata.Watermark PDF — Stamp text across every page — centered or tiled, with opacity.Add Page Numbers — Stamp page numbers onto a PDF, with position and format options.Extract Text — Pull plain text or Markdown out of a text-based PDF.PDF → Word — Extract a PDF’s text into an editable .docx document.Word → PDF — Convert a .docx document to PDF.Fill PDF Form — Fill in a PDF’s form fields and optionally flatten them.Sanitize PDF — Strip embedded JavaScript, attached files, metadata and annotations.Flatten PDF — Bake form fields and annotations into the page so they can’t be re-edited.Compress Image — Reduce image file size with a quality slider. See before/after.Invert Image Colors — Invert the colors of an image and download the result.Resize Image — Resize by pixel dimensions or percentage, keeping aspect ratio.Adjust Image — Brightness, contrast, and saturation with a live preview.Convert Image Format — Convert between PNG, JPEG, WebP, and AVIF.Greyscale Image — Convert the colors of an image to greyscale and download the result.Remove Background — Remove the background from an image using AI — runs entirely in your browser.Strip Image Metadata — Remove EXIF, GPS, and other metadata by re-encoding the image.Resize PDF — Change the page size of a PDF (A4, Letter, Legal, custom) and scale the content to fit.Rotate / Flip Image — Rotate by 90° steps and flip horizontally or vertically.Crop Image — Drag to select a region and crop the image to it.Favicon / App Icon Generator — Generate standard favicon and app icon sizes plus a multi-size ICO from one image.Edit PDF Metadata — View and edit a PDF’s title, author, subject, keywords, creator and producer — or clear them all.Watermark Image — Overlay text or a logo — position, opacity and size, single or tiled.Redact Image — Blur or pixelate regions of an image to hide faces, names or numbers.Upscale Image — Super-resolve an image 2× or 4× with a local AI model — no upload, runs entirely in your browser.Markdown → PDF — Render Markdown text or a .md file into a clean PDF.HTML → PDF — Render HTML markup or an .html file into a PDF.QR Code Generator — Generate a scannable QR code from text, URL, Wi-Fi, or vCard and download it as PNG or SVG.ZIP Files — Bundle multiple files into a single ZIP archive.File Hash / Checksum — Calculate a local SHA-256 checksum and optionally compare it with an expected hash.QR Code Reader — Decode a QR code from an image and copy the decoded text or URL.Split Image — Split an image into a grid of tiles and download them as a ZIP.