Edit the text of a PDF: with Acrobat, with Word and with free tools
Edit the text of a PDF with Acrobat Pro, with Word or for free with PDF24, and avoid the tricks that leave the old text hidden underneath. Step by step.
Free guides · English and Spanish · No sign-up
Learn Word, Excel and PDF like an expert.
No jargon, step by step.
Short guides, with pictures, to truly master Word, Excel and PDFs: styles and tables of contents that update themselves, formulas you can copy, pivot tables, and PDFs merged, signed and redacted properly, with free tools or with Acrobat. PowerPoint is on the way.
110Word, Excel and PDF guides
2languages
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Merge, split, reorder, rotate and delete PDF pages (free or with Acrobat)
Merge several PDFs, split them, and extract, reorder, rotate, delete or insert pages with Acrobat Pro or free with PDF24, PdfCraft and Preview. Step by step.
Comment on and review a PDF: notes, highlights, replies and comparing versions
Add notes, highlight, strike through and reply to comments in a PDF with free Acrobat Reader, Edge, PDF24 or PdfCraft, and compare two versions. Step by step.
Fill in and sign a PDF: drawn signature or digital certificate, and which one counts
Fill in PDF forms and sign them with a drawn signature or a digital certificate (Acrobat, PDF24, free tools), and learn which one counts. Step by step.
Redact a PDF for real, remove hidden data and add a password
Redact a PDF so the hidden text can't be recovered, strip metadata and other hidden data, and protect it with an open password. Step by step.
Scanned PDFs: recognize text (OCR), reduce the file size and save as PDF/A
Turn a scanned PDF into text you can search and copy (OCR), shrink the file and save it as PDF/A for e-filing or archiving. Step by step.
Who is DocuDojo for?
If you use Word every day, but “your own way”
You've spent years fighting the formatting. Here you learn what nobody taught you: styles, sections, automatic tables of contents. In minutes, not courses.
If you ask AI for everything
ChatGPT writes fast, but you're the one delivering the document. Learn to paste without breaking anything, turn Markdown into real headings and use Copilot wisely.
If you're a lawyer or write long documents
Clause numbering that never breaks, Track Changes, version comparison, reusable clauses and documents free of compromising metadata.
If your company needs a consistent look
One template, one palette and one set of styles for the whole team. Consistent documents for clients without chasing anyone.
Start here: Word
The six guides that change the way you work with Word the most.
Word styles: what they are and how to create and modify your own
Learn what a Word style is, how it differs from direct formatting, and how to apply, modify and create your own. Step by step with pictures, in 6 minutes.
Make Word switch to Normal text automatically after a heading
Set the “Style for following paragraph” so pressing Enter after a heading takes Word back to Normal text automatically. Step by step with pictures, in 4 minutes.
Create an automatic table of contents that updates itself
Build an automatic table of contents in Word (References › Table of Contents) from your headings and update it in one click. Step by step with pictures.
Paste text from ChatGPT, Gemini or Claude into Word without breaking the formatting
Paste ChatGPT, Gemini or Claude answers into Word without odd fonts or asterisks: text only, heading styles and a quick cleanup. Step by step.
Create a corporate template (.dotx) so the whole team writes alike
Build a Word template (.dotx) with your styles, colors, logo and cover page, save it where Word finds it and share it with your team. Step by step in 8 minutes.
Track Changes and comments like a professional
Turn on Track Changes, choose which markup to see, accept or reject edits, use comments and deliver a clean final version. Step by step with pictures, in 6 minutes.
And in Excel, start with these
The formulas and tools that save the most time every day.
Excel Tables: the format that makes filters, formulas and charts work on their own
Turn your data into an Excel table: filters, totals and formulas that expand on their own when you add rows. Step by step with examples, in 6 minutes.
Relative and absolute references ($A$1): why your formula breaks when you drag it
Lock a cell with $ so your formula doesn't go wrong when you drag it. Relative, absolute and mixed references, plus the F4 key, step by step.
XLOOKUP: find data in another table in seconds (and forget VLOOKUP)
Learn to use XLOOKUP to pull names, cities or prices from another sheet: exact match, lookups to the left, multiple columns and tiers. Step by step, with examples.
Pivot tables in 5 minutes: summarize thousands of rows without writing formulas
Build your first Excel pivot table and get total sales by region and product without a single formula. Step by step with pictures and sample data.
SUMIFS and COUNTIFS: sum and count with conditions
Learn to sum and count only the rows that meet several conditions (region, sales rep, dates, amounts) with SUMIFS and COUNTIFS. Step by step, with examples.
Ask ChatGPT (or any AI) for formulas and check that they're right
Learn how to ask ChatGPT or any AI for Excel formulas, describe your sheet so it gets them right, and check that they work. Step by step, with real examples.
And for your PDFs, start with these
What people do most with PDFs at the office, with free tools or with Acrobat.
Merge, split, reorder, rotate and delete PDF pages (free or with Acrobat)
Merge several PDFs, split them, and extract, reorder, rotate, delete or insert pages with Acrobat Pro or free with PDF24, PdfCraft and Preview. Step by step.
Fill in and sign a PDF: drawn signature or digital certificate, and which one counts
Fill in PDF forms and sign them with a drawn signature or a digital certificate (Acrobat, PDF24, free tools), and learn which one counts. Step by step.
Edit the text of a PDF: with Acrobat, with Word and with free tools
Edit the text of a PDF with Acrobat Pro, with Word or for free with PDF24, and avoid the tricks that leave the old text hidden underneath. Step by step.
Convert a PDF to Word or Excel without losing the layout (and pull tables into Excel)
Convert a PDF to Word or Excel with Word, Acrobat or PDF24, and pull its tables into Excel with Power Query. Includes what to check afterwards. Step by step.
Redact a PDF for real, remove hidden data and add a password
Redact a PDF so the hidden text can't be recovered, strip metadata and other hidden data, and protect it with an open password. Step by step.
Convert Word to PDF: Print, Save As or Acrobat (with bookmarks and comments)
Compare the ways to turn Word into PDF (Print, Save As and Acrobat) and create PDFs with bookmarks, visible comments or real PDF notes. Step by step.
Learning paths
Guides in order for a concrete goal. Tick the ones you complete and watch your progress.
Word
Word from scratch, no fear
The path for people who use Word “their own way” and want to stop fighting the formatting. Short guides, in order.
Theses, dissertations and long reports
Everything a 40-page document needs: table of contents, numbering, sections, figures, citations and notes.
Word for lawyers
Clause numbering that never breaks, Track Changes, version comparison, reusable clauses and metadata-free documents.
Templates and corporate branding
One template, one palette and one set of styles for the whole company: consistent documents for clients without chasing anyone.
Word + AI: don't let formatting slow you down
For people who ask ChatGPT, Gemini or Claude for everything and then suffer when pasting it into Word. AI writes; you own the document.
Excel
Excel from scratch, no fear
For people who only open Excel to make lists. Basic formulas, tables, filters and charts, in short guides and in order.
The essential formulas
From SUM to XLOOKUP and FILTER: the functions that solve 90% of everyday work, with examples you can copy.
Reports and data analysis
From a list of thousands of rows to a clear report: clean data, pivot tables, charts, conditional formatting and a simple dashboard.
Excel for the office, freelancers and small business
Budgets, client lists, invoices and shared files: what you need to run a business or a department with Excel.
Excel + AI: formulas you understand
For people who ask ChatGPT, Gemini or Claude for formulas. AI suggests; you check, understand and decide.
PDF from scratch: what you need at the office
Create the PDF from Word, reorder its pages, comment on it, fix the text, sign it and turn it into Word or Excel. In order, with free tools or with Acrobat.
PDF for lawyers and legal staff
Sign with a digital certificate, redact personal data for real, prepare searchable PDF/A filings, review versions and assemble case files.
PDF for free: everything with free tools
Acrobat Reader, Word, Edge, PDF24 and PdfCraft: what each can do without a subscription and when Acrobat Pro is worth paying for.
The office tools
Word, Excel and PDF are available now. PowerPoint will follow with the same approach: step by step, with pictures, no jargon.
Word
Styles, tables of contents, templates, Track Changes, macros, fields and Word + AI.
Excel
Formulas that don't scare you, pivot tables, conditional formatting and automation.
Edit, merge, comment on, sign, redact and convert PDFs, with Acrobat or with free tools.
PowerPoint
Slide masters, branded templates, animations with purpose and presentations people understand.
How we make the guides
Every guide is checked on Microsoft 365 (Word and Excel for Windows, in English and Spanish) or, for PDF guides, against each tool's official documentation. It shows its date and points out Mac differences. If you find a mistake, write to us and we'll fix it. Advertising never influences the content.
Read the editorial policyMacro? Range? Absolute reference?
The glossaries explain every term in one or two sentences, no jargon.
Do you use Word like an expert?
12 questions, 3 minutes. At the end we tell you your level and which guides to read first.
Do you use Excel like an expert?
12 questions about formulas, tables and analysis. Find your level and which guides to read first.