DocMaster

DocMaster is a PDF editor that changes the real text in your PDFs. Tap a line, retype it, and DocMaster writes it back in the original font. Fill and sign forms, then save a clean file with no watermark.

Free to use with ads · No sign-up · No watermark · No trial. No subscription needed: one optional one-time purchase removes the ads.

Open PDF, DOCX, XLSX and PPTX files in one app, and chat with your documents: answers show the page they came from. The AI runs on your phone after a one-time download, so your documents are not uploaded.

✏️ EDIT TEXT IN PDF AND KEEP THE FONT

• Edit text in PDF files: fix a word, a number, a date or a name in the PDF itself, not in a box on top

• Keeps the original font; if the file lacks a letter you type, it uses a close match and says so

• Change the size, bold, italic, color and alignment

• Add, move and replace pictures

• Works on PDFs with real text. A scanned page is a picture: add a text box there instead

✍️ FILL & SIGN

• Fill PDF forms: text fields, check boxes, choices and signature fields

• Draw your signature once and place it on any page

• Add text and dates to printed or scanned forms

• Sign a lease, an offer letter, an NDA or a permission slip, then share it from your phone

✅ WHY DOCMASTER: A PDF EDITOR WITH NO SIGN-UP

• Your files are edited on your phone, not uploaded like on many online PDF editors

• No account, no email, no login: open the app and start editing

• No watermark on anything you save

• No trial and no paywall on saving. Every tool works with ads

🤖 PRIVATE AI ON YOUR PHONE

• Chat with Document: ask a PDF or DOCX file questions; follow-ups remember the chat, and answers cite the page

• Summarize contracts, policies, reports and notes

• Rewrite text in 7 tones, translate it, or draft a new document

• Study guides, flashcards and practice questions from your notes

• Speak instead of typing, in 13 languages (some use online speech recognition, with your permission)

• One-time download of about 1.1 to 2.9 GB, depending on your phone (Wi-Fi recommended). After that the AI works offline. Needs a 64-bit phone

• AI can make mistakes, so check important answers

📊 AI PRESENTATION MAKER

• Type a topic and get an outline in seconds. Change it, then the slides fill in within a minute or two

• Edit every slide: text, pictures, shapes, layouts and themes

• Save as PPTX or PDF, or present from your phone with a pen, laser pointer and speaker notes

🧰 PDF READER AND TOOLS THAT RUN ON YOUR PHONE

• A fast PDF reader and viewer: zoom, jump to a page, read comments, print or share

• Merge PDF, split PDF, and rotate, delete or reorder pages

• Compress PDF with three levels to make files smaller for uploads

• Redact: the text under a black box is removed from the file, not just hidden

• Lock a PDF with a password, or unlock one you have the password for

• Stamps (APPROVED, PAID or your own company seal), comments, highlights and drawing

• Scan paper to PDF, turn photos into a PDF, and extract English text (OCR, small one-time download)

📄 DOCX, XLSX AND PPTX FILES

• Documents (DOCX): headings, lists and tables; save as DOCX or PDF

• Spreadsheets (XLSX): formulas with 75 functions, such as SUM and AVERAGE

• Presentations (PPTX): view, edit, present and export

• Templates: résumé, cover letter, invoice, formal letter, meeting notes and leave request

🎯 WHO IT'S FOR

• Job seekers: fix a résumé, sign the offer letter, shrink the PDF for the upload

• Renters and new hires: fill and sign a lease or contract without uploading it anywhere

• Freelancers and small businesses: invoices, PAID stamps, contracts and receipts

• Students and teachers: class slides, study notes and flashcards

🔒 YOUR DOCUMENTS STAY ON YOUR PHONE

Editing, signing, the PDF tools and the AI work on the phone, and DocMaster does not upload your files. The app shows ads and sends crash reports and usage statistics; the privacy policy explains what is sent.