Alat percuma untuk PDF, imej dan Markdown — tiada perisian untuk dipasang, tiada tera air pada fail anda, dan fail tidak pernah disimpan lebih dari 60 minit.
ACE PDFMD adalah toolkit berasaskan web dengan 70+ alat untuk bekerja dengan fail PDF, imej dan Markdown — gabungkan, pisahkan, mampat, tukar, sunting, tandatangan, OCR, redaksi dan banyak lagi. Dibina untuk menjadi alternatif yang benar-benar percuma, pantas dan menghormati privasi.
Ya. Sesiapa boleh menggunakan ACE PDFMD tanpa mendaftar — pelawat anonim mendapat 10 tugasan/muat turun percuma sehari. Mencipta akaun percuma meningkatkannya kepada Tanpa had. Tiada kad kredit diperlukan untuk kedua-duanya. Pelan Pro berbayar ($2.99/bulan atau $24.99/tahun) menghapuskan semua had harian.
Tidak. Setiap alat berjalan dalam pelayar web. Tiada apa yang perlu dimuat turun atau dipasang.
Banyak alat tidak memuat naik fail. Untuk alat pelayan, fail dihantar melalui HTTPS dan dipadam dalam 60 minit. Dasar Privasi.
Tiada API AI pihak ketiga digunakan untuk memproses dokumen anda. Semua penukaran, OCR dan pengeditan berjalan pada perisian sumber terbuka yang dihoskan sendiri — kandungan anda tidak pernah dihantar ke OpenAI, Google Gemini atau mana-mana pembekal AI lain.
Lihat halaman Harga penuh kami untuk perbandingan had tugas harian, had saiz fail dan harga.
Kebanyakan laman PDF percuma sama ada mengenakan had yang sangat agresif, menyembunyikan alat di belakang dinding bayaran, atau memonetisasi dokumen anda secara senyap. ACE PDFMD menjaga tingkatan Tanpa nama dan Percuma benar-benar boleh digunakan untuk tugas harian, telus tentang apa yang disimpan, dan mengenakan salah satu harga Pro terendah — $2.99/bulan — tanpa bayaran tersembunyi.
ACE PDFMD dibina di atas beberapa projek sumber terbuka dan berterima kasih kepada mereka: pikepdf (MPL-2.0), pdfplumber (MIT) dan pypdfium2 (Apache-2.0) untuk membaca, memaparkan dan menyunting PDF, img2pdf (LGPL-3.0) untuk penukaran imej ke PDF tanpa kehilangan kualiti, serta Tesseract OCR dan LibreOffice pada pelayan. Dalam pelayar anda, KaTeX (MIT), Turndown (MIT) dan Mammoth.js (BSD-2-Clause) menguruskan pemaparan dan penukaran. PyMuPDF (AGPL-3.0) tidak lagi digunakan di mana-mana dalam projek ini. Terima kasih kepada penulis dan komuniti di sebalik projek ini.
| Alat | Apa yang dilakukan |
|---|---|
| PDF to Word | Convert PDF into an editable DOCX. |
| Merge PDF | Combine multiple PDFs into one document. |
| Split PDF | Extract page ranges or split into fixed-size chunks. |
| Compress PDF | Shrink file size by optimizing images. |
| JPG to PDF | Combine images into a single PDF. |
| PDF to JPG | Convert each page to an image. |
| Word to PDF | Convert DOCX documents to PDF. |
| Edit PDF Text | Edit the existing text directly inside the PDF, in place, with matching font/size/color. |
| Edit PDF | Add text, boxes, or images anywhere on the page. |
| Sign PDF | Draw a signature and place it on your document. |
| Organize PDF | Reorder or delete pages. |
| Rotate PDF | Rotate all or selected pages. |
| Extract Pages | Pull specific pages into a new PDF. |
| Protect PDF | Add a password to encrypt your PDF. |
| Unlock PDF | Remove password protection. |
| OCR PDF | Make scanned PDFs searchable by adding a text layer. |
| Compare PDF | Highlight text differences between two PDFs. |
| PDF Reader | Open and read a PDF page-by-page, right in the browser. |
| PDF Form Filler | Fill in a PDF's form fields and save or flatten the result. |
| Redact PDF | Permanently black out sensitive content. |
| Crop PDF | Trim margins from pages. |
| Watermark PDF | Stamp text over every page. |
| Add Page Numbers | Insert page numbers into your document. |
| Repair PDF | Fix corrupted or malformed PDF files. |
| Delete PDF Pages | Remove specific pages from a PDF. |
| Resize PDF | Rescale every page to a standard paper size. |
| Grayscale PDF | Convert every page of a PDF to black & white. |
| Flatten PDF | Bake form field values into the page and lock them. |
| Edit PDF Metadata | View and change a PDF's title, author, subject & keywords. |
| PDF to Markdown | Convert PDF content into clean Markdown (great for docs/LLMs). |
| PDF to Text | Extract plain, unformatted text from a PDF. |
| PDF to HTML | Convert a PDF into a simple standalone HTML page. |
| Extract Images | Pull every embedded image out of a PDF into a zip. |
| PDF to PowerPoint | Turn PDF pages into slides. |
| PowerPoint to PDF | Convert presentations to PDF. |
| PDF to Excel | Extract PDF text into spreadsheet rows. |
| Excel to PDF | Convert spreadsheets to PDF. |
| HTML to PDF | Paste HTML/markup and render it as a PDF. |
| PDF to PDF/A | Best-effort archival format conversion. |
| Scan to PDF | Turn photographed pages into a clean, professional scan -- deskew, shadow removal, color/grayscale/B&W, and auto page-order by filename. |
| Scan to Markdown | Turn photographed pages into clean, searchable Markdown text -- same deskew/shadow-removal cleanup as Scan to PDF, then OCR extracts the text into a .md file, page by page. |
| Markdown Editor | Open, write, and edit Markdown with a live rich preview (tables, images, task lists) -- export to .md, PDF, Word, or HTML. |
| Markdown Viewer | Upload a .md file and view it beautifully rendered -- tables, images, code blocks and all. |
| Markdown to PDF | Convert a .md file into a formatted PDF. |
| Markdown to Word | Convert a .md file into an editable DOCX. |
| Markdown to HTML | Convert a .md file into a standalone HTML page. |
| Word to Markdown | Convert a DOCX document into clean Markdown, tables included. |
| HTML to Markdown | Convert an HTML file into clean Markdown. |
| Markdown Table of Contents | Auto-generate and insert a linked Table of Contents from your headings. |
| Compare Markdown | Highlight line-by-line differences between two Markdown files. |
| Merge Markdown | Combine multiple .md files into one document, in order. |
| Split Markdown | Split a .md file into separate files at each heading. |
| Markdown to EPUB | Convert a .md file into an EPUB e-book. |
| ODT to PDF | Convert OpenDocument Text files to PDF. |
| ODS to PDF | Convert OpenDocument Spreadsheets to PDF. |
| ODP to PDF | Convert OpenDocument Presentations to PDF. |
| TXT to PDF | Convert a plain text file to PDF. |
| RTF to PDF | Convert Rich Text Format documents to PDF. |
| EPUB to PDF | Convert an EPUB e-book to PDF. |
| CSV to PDF | Render a CSV file as a formatted table PDF. |
| ZIP to PDF | Convert every supported file inside a .zip and merge them into one PDF. |
| Basic Image Editor | Crop, rotate, adjust brightness/contrast/saturation, and convert to grayscale — all in one interactive editor. |
| Compress Image | Reduce image file size while preserving quality. Target a quality level or an exact KB size. |
| Resize Image | Resize images by pixels, percentage, or target file size in KB. Batch resize multiple images at once. |
| Convert Image | Convert between JPG, PNG, WebP, BMP, GIF, TIFF and more. |
| Image to PDF | Combine multiple images into a single PDF file. |
| Image to Text (OCR) | Extract text from images using OCR. Supports 35+ languages. |
| Upscale Image | Increase image resolution using AI-style super-resolution (Lanczos interpolation). |
| Image Metadata | View and strip EXIF/metadata from images. Remove GPS, camera info, timestamps. |
| HTML to Image | Render an HTML file as a PNG screenshot. |
| PDF to Image (HQ) | Export PDF pages as high-resolution PNG or JPG images. |