# Free Online PDF Tools: Merge, Split, Organize, Compress, Number, Sign

> Work with PDFs for free in your browser: merge files, split or extract pages, delete and reorder pages, rotate, convert to and from images, compress, watermark, add page numbers, sign or stamp, lay several pages per sheet, extract text, add text, headers and footers, redact, insert pages, turn PDFs into one long image, flatten forms, compare PDFs, edit bookmarks, impose booklets, OCR scans into searchable PDFs apply letterheads, convert PDF to Word and PowerPoint, inspect PDF info, make dark-mode PDFs remove blank pages, convert PDF to Excel, annotate, manage attachments, sanitize PDFs, create fillable forms, print posters, split by bookmarks or size and convert PDF to Markdown, Markdown to PDF, interleave double-sided scans PDF to EPUB, Bates numbering, scan deskew, page labels PDF ↔ CBZ, PDF to HTML PDF read-aloud, scanned-look effects, splitting book spreads, PDF to SVG, margins, watermark removal, repair, lossless optimization, font extraction, TOC pages, link editing, accessibility checks, form mail merge, word counts, print preflight, QR stamping, signature verification, invoice data extraction, content-based renaming and separator-page splitting. No uploads, fully private.

- URL: https://qilingtools.com/en/pdf
- Price: Free, no sign-up
- Privacy: Runs locally in the browser; files are never uploaded

## Tools (76)

- [Merge PDF](https://qilingtools.com/en/pdf/merge): Free online PDF merger: combine several PDF files into one in the order you choose, with reordering. Processed locally in your browser, no upload, no sign-up.
- [Split / Extract PDF](https://qilingtools.com/en/pdf/split): Free online PDF splitter: extract a page range into a new PDF, or split every page into its own file and download them as a ZIP. Processed locally.
- [Rotate PDF](https://qilingtools.com/en/pdf/rotate): Free online PDF rotator: rotate all or selected pages by 90°, 180° or 270° to fix scanned documents. Processed locally, no upload.
- [PDF to Image](https://qilingtools.com/en/pdf/to-image): Free online PDF to image converter: render every page as a high-resolution JPG or PNG at 72/150/300 DPI, download all as a ZIP. Processed locally, no upload.
- [Image to PDF](https://qilingtools.com/en/pdf/from-image): Free online image to PDF converter: combine JPG, PNG and WebP images into one PDF in order, with A4 or image-sized pages. Processed locally, no upload.
- [Compress PDF](https://qilingtools.com/en/pdf/compress): Free online PDF compressor: re-render pages with compressed images to shrink scanned and image-heavy PDFs, with adjustable quality. Processed locally.
- [Watermark PDF](https://qilingtools.com/en/pdf/watermark): Free online PDF watermark tool: add text watermarks to every page, tiled or centred, with opacity and angle controls. Any language, processed locally.
- [Delete PDF Pages](https://qilingtools.com/en/pdf/delete): Free online tool to delete PDF pages: remove pages by number or range and keep the rest, then download. Processed locally, no upload.
- [Extract PDF Text](https://qilingtools.com/en/pdf/extract-text): Free online PDF text extractor: pull all text from a text-based PDF page by page, copy it or download as TXT. Parsed locally, never uploaded.
- [Organize PDF Pages](https://qilingtools.com/en/pdf/organize): Free online PDF page organizer: every page as a thumbnail — drag to reorder, rotate or delete single pages, then export a new PDF. Runs locally.
- [Add Page Numbers to PDF](https://qilingtools.com/en/pdf/page-number): Free online PDF page numbering tool: add page numbers choosing the position, style, font size, starting number, page range and custom template. Runs locally.
- [Sign & Stamp PDF](https://qilingtools.com/en/pdf/sign): Free online PDF signing tool: drop in a handwritten signature or company stamp, drag it into place on a page preview, adjust size and opacity, then export.
- [PDF Cross-Page Seal](https://qilingtools.com/en/pdf/cross-seal): Stamp a cross-page seal on a PDF for free: the seal is sliced by page count, one slice per page edge, so fanned pages rebuild it and no page can be swapped.
- [PDF Editor](https://qilingtools.com/en/pdf/edit): Free online PDF editor: click text on the page to change or delete it, with the old text truly removed and the rest of the page untouched. Add text, images and cover boxes too.
- [Multiple Pages per Sheet](https://qilingtools.com/en/pdf/n-up): Free online PDF N-up tool: lay 2, 4, 6 or 9 pages onto one sheet with a choice of A4 orientation, margins and gaps to save paper. Runs locally, never uploaded.
- [Crop PDF](https://qilingtools.com/en/pdf/crop): Free online PDF cropper: detect each page's content area and trim the white space, or set margins by hand with a live preview. Stays vector, text selectable.
- [Encrypt PDF](https://qilingtools.com/en/pdf/encrypt): Free online PDF encryption: set an open password and restrict printing, copying, editing and annotating with AES-256. Everything runs on your device.
- [Unlock PDF](https://qilingtools.com/en/pdf/decrypt): Free online PDF unlocker: enter the password you already know and export a PDF without it, or lift owner-only limits on printing and copying. Runs locally.
- [Extract PDF Images](https://qilingtools.com/en/pdf/extract-images): Free online PDF image extractor: pull embedded pictures out at their original resolution as PNG or JPG, with fragment filtering and duplicate removal.
- [Resize PDF Pages](https://qilingtools.com/en/pdf/resize): Free online PDF page resizer: put mixed-size pages onto one paper size — A4, A3, Letter or custom — scaled proportionally and centred, with optional margins.
- [Edit PDF Properties](https://qilingtools.com/en/pdf/metadata): Free online PDF metadata editor: view and change the title, author, subject and keywords, or wipe every property and timestamp for privacy. Runs locally.
- [PDF to Black & White](https://qilingtools.com/en/pdf/grayscale): Free online PDF grayscale converter: turn a colour PDF into grayscale or pure black and white, with adjustable threshold, brightness and live preview.
- [Add Text to PDF](https://qilingtools.com/en/pdf/add-text): Free online tool to add text to a PDF: click the page to type, then drag, resize, recolour or bold it. Chinese supported and the pages stay vector.
- [Flatten PDF](https://qilingtools.com/en/pdf/flatten): Free online PDF flattener: lists every form field so you can fill it in first, then turns the form into plain page content, optionally rasterizing each page.
- [PDF Header & Footer](https://qilingtools.com/en/pdf/header-footer): Free online tool to add headers and footers to a PDF: text left, centre or right with {page}, {total}, {date} and {filename} variables, plus a separator line.
- [Insert Pages into PDF](https://qilingtools.com/en/pdf/insert): Free online tool to insert pages into a PDF: add blank pages, images or pages from another PDF at the start, the end or around page N, or interleave two scans.
- [Redact PDF](https://qilingtools.com/en/pdf/redact): Free online PDF redaction: draw boxes over names, ID numbers or amounts and black them out for good — those pages are re-rendered so the text is gone.
- [PDF to Long Image](https://qilingtools.com/en/pdf/to-long-image): Free online PDF to long image converter: stack the pages you pick into one tall JPG or PNG, with adjustable width, gap and background. Huge results auto-split.
- [Photo Print Layout](https://qilingtools.com/en/image/print-layout): Free online photo print layout: tile ID photos at 300 DPI onto 4×6, 5×7, A4 or Letter paper with gaps, cut lines and copies, then export JPG or PDF.
- [PDF Booklet Maker](https://qilingtools.com/en/pdf/booklet): Free online PDF booklet maker: reorder pages for saddle-stitch printing, two up on landscape sheets padded to a multiple of four, duplex or separate sides.
- [PDF Bookmarks Editor](https://qilingtools.com/en/pdf/bookmarks): Free online PDF bookmark editor: read the outline, then add, rename, nest and reorder bookmarks, set pages by clicking thumbnails, or paste a table of contents.
- [Compare PDF](https://qilingtools.com/en/pdf/compare): Free online PDF compare: see every added and removed word highlighted page by page, plus a pixel diff that boxes changed images and layout in red.
- [PDF OCR](https://qilingtools.com/en/pdf/ocr): Free online PDF OCR: recognise English, Chinese and digits in scanned PDFs in your browser and add an invisible text layer, so pages become searchable. Local.
- [PDF Overlay & Letterhead](https://qilingtools.com/en/pdf/overlay): Free online PDF overlay tool: put a letterhead, background, watermark or stamp behind or in front of every page, with page range, scaling and opacity.
- [PDF Dark Mode](https://qilingtools.com/en/pdf/dark-mode): Free online PDF dark mode converter: turn black-on-white PDFs into light-on-dark pages, with hue-preserving, sepia or custom colours. Text stays selectable.
- [PDF Info & Inspector](https://qilingtools.com/en/pdf/info): Free online PDF inspector: version, page count and sizes, metadata, encryption, permissions, fonts, images, form fields and attachments, as a JSON report.
- [Remove Blank Pages from PDF](https://qilingtools.com/en/pdf/remove-blank): Free online tool to remove blank pages from a PDF: it finds empty and near-blank scans, marks them on thumbnails you can toggle, sensitivity adjustable.
- [PDF to PowerPoint](https://qilingtools.com/en/pdf/to-ppt): Free online PDF to PowerPoint converter: every page becomes a high-resolution slide in a real .pptx, sized to the page or 16:9, with the text as speaker notes.
- [PDF to Word](https://qilingtools.com/en/pdf/to-word): Free online PDF to Word converter: turn a PDF into an editable .docx keeping paragraphs, headings, bold and italic, lists, images and page breaks. Runs locally.
- [Annotate PDF](https://qilingtools.com/en/pdf/annotate): Free online PDF annotator: highlight, draw, add shapes, arrows, sticky notes and text boxes, then save as editable annotations or flatten them. Runs locally.
- [PDF Attachments](https://qilingtools.com/en/pdf/attachments): Free PDF attachment manager: list embedded files with size and description, download one or all as ZIP, attach new files or remove old ones. Runs locally.
- [Sanitize PDF](https://qilingtools.com/en/pdf/sanitize): Free PDF sanitizer: find and remove JavaScript, auto-run and launch actions, links, attachments, comments, forms and metadata, with a before/after report.
- [PDF to Excel](https://qilingtools.com/en/pdf/to-excel): Free PDF to Excel converter: detects ruled and borderless tables, lets you adjust columns, turns numbers into real values and exports XLSX or CSV. Runs locally.
- [Create PDF Form](https://qilingtools.com/en/pdf/create-form): Make any PDF fillable: draw text fields, checkboxes, radio buttons, dropdowns, date and signature fields; set names, required flags and tab order. Free, local.
- [PDF Poster Printing](https://qilingtools.com/en/pdf/poster): Enlarge a PDF page and tile it across A4, A3 or Letter sheets with overlap, crop marks, A1/A2 labels and an assembly guide. Vector output, free and local.
- [Advanced PDF Splitter](https://qilingtools.com/en/pdf/split-advanced): Split a PDF by bookmarks, maximum file size, every N pages, odd/even pages, blank separator pages or a keyword/regex. Preview the parts, download a ZIP.
- [PDF to Markdown](https://qilingtools.com/en/pdf/to-markdown): Convert PDF to clean Markdown for ChatGPT, Claude and other LLMs: headings, lists, bold/italic, GFM tables and links, minus headers and footers.
- [Markdown to PDF](https://qilingtools.com/en/pdf/from-markdown): Convert Markdown or plain text to PDF online with a live paginated preview, three themes, paper and margin options, headers, page numbers and a TOC.
- [Merge Scanned Fronts & Backs](https://qilingtools.com/en/pdf/interleave): Combine a fronts PDF and a backs PDF from a single-sided scanner into correct duplex order, with reversed backs, 180° rotation, blank padding and preview.
- [PDF to EPUB](https://qilingtools.com/en/pdf/to-epub): Convert PDF to a reflowable EPUB 3 e-book online: rebuilt paragraphs and headings, chapters from bookmarks, no headers or footers, images, cover and metadata.
- [Bates Numbering](https://qilingtools.com/en/pdf/bates): Add Bates numbers to PDFs: prefix, suffix, zero padding, numbering continued across files, 6 positions, white box, files renamed by range plus a CSV index.
- [PDF ⇄ CBZ Comics](https://qilingtools.com/en/pdf/cbz): Convert comics both ways: PDF to CBZ with lossless page extraction, CBZ/ZIP to PDF with natural sort, A4/B5 fit and manga order, images to CBZ + ComicInfo.xml.
- [Deskew PDF](https://qilingtools.com/en/pdf/deskew): Straighten skewed scanned PDFs and images: per-page skew detection (±15°, 0.1° steps), before/after preview, manual override, border removal, original sizes.
- [PDF Page Labels](https://qilingtools.com/en/pdf/page-labels): Edit PDF page labels: decimal, Roman, letter or prefix-only ranges with custom start numbers. Reads existing labels and previews every page’s label.
- [PDF Read Aloud](https://qilingtools.com/en/pdf/read-aloud): Listen to a PDF read aloud sentence by sentence, highlighted in the text and on the page. Choose voices and speed, click to jump, and resume later.
- [PDF to HTML](https://qilingtools.com/en/pdf/to-html): Convert PDF to HTML: semantic reflowable pages with headings, lists, tables and images, or a fixed layout with selectable text. Single file or ZIP.
- [Add PDF Margins](https://qilingtools.com/en/pdf/margin): Add margins and a binding gutter to PDF pages: per side in mm, in or pt, mirrored for duplex, enlarge page or shrink content, background color, cut lines.
- [Scanned Look PDF](https://qilingtools.com/en/pdf/scan-effect): Give a digital PDF a scanned or photocopied look: seeded random tilt, grayscale or color, paper tint, grain, blur, toner specks, edge shadow and live preview.
- [Split PDF Spreads](https://qilingtools.com/en/pdf/split-spread): Split book-spread scans into single pages: left/right or top/bottom, auto gutter detection with per-page tweaks, right-to-left order, no recompression.
- [PDF to SVG](https://qilingtools.com/en/pdf/to-svg): Convert PDF pages to SVG: paths, colors, gradients and patterns stay vector, text stays editable, images embedded. Image + text-layer mode, SVG or ZIP.
- [PDF Fonts](https://qilingtools.com/en/pdf/fonts): See which fonts a PDF uses: type, embedding, subset, encoding and ToUnicode per page, with copy/search warnings. Extract embedded fonts as TTF, OTF, CFF or PFB.
- [Optimize PDF](https://qilingtools.com/en/pdf/optimize): Losslessly shrink PDFs: merge duplicate fonts and images, Flate-compress streams, pack object streams, drop unused data, optionally downsample big images.
- [Remove PDF Watermark](https://qilingtools.com/en/pdf/remove-watermark): Remove watermarks from your own PDFs: detects watermark annotations, layers, artifacts and text or images repeated on each page, then deletes them cleanly.
- [PDF Find and Replace](https://qilingtools.com/en/pdf/find-replace): Find and replace text in a PDF for free: fix dates, names, prices or typos, or delete text. Old text is truly removed and the rest stays put. Runs locally.
- [Repair PDF](https://qilingtools.com/en/pdf/repair): Fix corrupt PDFs that won’t open: diagnoses header, xref, trailer and truncation problems, rebuilds the xref and page tree, re-renders as a last resort. Free.
- [PDF Table of Contents](https://qilingtools.com/en/pdf/toc): Create a clickable table of contents page for a PDF from bookmarks or detected headings: editable levels and pages, dotted leaders, links that stay correct.
- [PDF Accessibility Checker](https://qilingtools.com/en/pdf/accessibility): Check PDF accessibility: tags, language, title, fonts, alt text, headings, form tooltips, links and scanned pages. Apply safe fixes and export a report.
- [PDF Form Mail Merge](https://qilingtools.com/en/pdf/form-merge): Fill a PDF form from CSV rows: auto-matched fields, checkboxes, radios, dropdowns, CJK text, optional flattening, one PDF per row or combined; export form data.
- [PDF Link Manager](https://qilingtools.com/en/pdf/links): List every link in a PDF with its anchor text, export CSV, check URL format, edit or delete links, draw new links and auto-link plain-text URLs and emails.
- [PDF Word Count](https://qilingtools.com/en/pdf/word-count): Count PDF words Word-style for English and CJK: characters, sentences, paragraphs, per-page chart, reading time, keywords and Flesch readability score.
- [PDF Preflight Check](https://qilingtools.com/en/pdf/preflight): Free online PDF preflight: bleed and TrimBox, effective image DPI, RGB/CMYK/spot colors, fonts, transparency, overprint, hairlines and print permission.
- [Add QR Codes to PDF](https://qilingtools.com/en/pdf/qr-stamp): Stamp a QR code on every PDF page: content from page number, file name, date or your own ID, drawn as crisp vectors, upright on rotated pages, batch files.
- [PDF Signature Verifier](https://qilingtools.com/en/pdf/signatures): Verify PDF digital signatures: recompute digests, check RSA/ECDSA signatures, view the certificate chain, timestamps and LTV data, and spot edits after signing.
- [Chinese E-Invoice Extractor](https://qilingtools.com/en/pdf/invoice): Batch-extract Chinese VAT and digital e-invoice PDFs: number, date, buyer, seller, tax IDs, amounts, line items; QR cross-check, duplicates, CSV.
- [Rename PDFs by Content](https://qilingtools.com/en/pdf/rename): Batch rename PDFs by content: put dates, invoice or order numbers, emails, totals, titles or labelled text into a name pattern; preview clashes.
- [Split PDF by Separator Sheets](https://qilingtools.com/en/pdf/split-qr): Split a batch-scanned PDF at QR or barcode separator sheets, blank pages or marker text; keep or drop separators, name files from QR, print sheets.