Blog
Guides and tutorials for working with documents and diagrams — right in your browser, with your files never sent to a server.
How to extract text from a scanned PDF with OCR, free in your browser
To extract text from a scanned PDF, use OCR: pick the language, click "Recognize and download" and get a .txt with the text. Free, in your browser, with no upload.
Read the guide →How to add a watermark to a PDF for free, without uploading it
To add a watermark to a PDF, type the text, click "Apply and download" and get the file with the mark on every page. Free, in your browser, with no upload: your file never leaves your device.
Read the guide →How to open DWG without AutoCAD: convert to PDF, PNG or DXF
Got a floor plan in DWG and no AutoCAD? Open the drawing here and convert it to PDF, PNG or DXF, free, with nothing to install and no license needed.
Read the guide →How to open CDR without CorelDRAW: convert to PDF, ODG or PNG
Got artwork in .cdr and no CorelDRAW? Open it and convert to PDF to approve, to ODG to really edit, or to PNG, free and with nothing to install.
Read the guide →How to extract RAR files online, no WinRAR needed
You can extract a .rar online, for free, in your browser: upload it, enter the password if there is one and download what's inside. Here's how, plus the limits.
Read the guide →How to convert RAR to ZIP online, no WinRAR needed
Converting RAR to ZIP takes one click, for free, in your browser: the contents are extracted and repacked into a .zip that opens anywhere. Here's how, plus the limits.
Read the guide →How to create a favicon.ico from a PNG, in your browser
You can create a favicon.ico from a PNG or WebP in seconds, for free, in your browser, with the 16, 32 and 48 sizes and a tab preview before you download. Here's how.
Read the guide →How to convert DXF to SVG or PNG right in your browser
Convert a .dxf drawing to SVG or PNG for free, in your browser and without AutoCAD: upload the file and download the image. See which format to pick and what's left out.
Read the guide →How to redact sensitive data in a PDF for real (no fake black box)
You can redact sensitive data in a PDF for free, in your browser: drag a bar over it, review the preview and download a file where the data is gone for good.
Read the guide →How AtlasDocs converts files without sending anything to a server
AtlasDocs has 146 free tools and 131 of them run inside your browser. See how it works under the hood, which ones are the exceptions, and how to check it yourself.
Read the guide →How to sign a PDF for free in your browser (and make it legal)
You can sign a PDF for free without printing: draw, type or upload your signature, click the page and download. Then, if you need it, add legal validity through gov.br.
Read the guide →How to convert PDF to JPG or PNG, page by page, for free
You can convert a PDF to JPG or PNG for free, in your browser: pick the format, click Convert and download and get one image per page (as a ZIP when there are several).
Read the guide →How to delete pages from a PDF for free, from thumbnails
To delete pages from a PDF, tick the sheets that should go in the thumbnails and click Delete and download. Free, in your browser, with the file never sent to any server.
Read the guide →How to merge multiple PDFs into one, in order and without a watermark
To merge multiple PDFs into one, upload the files, order them with the ↑ and ↓ arrows and click Merge and download. Free, no watermark, right in your browser.
Read the guide →How to rotate pages in a PDF and save the rotation for good
To rotate a PDF, tick the crooked pages in the thumbnails (or none, for all of them), pick 90°, 180° or 270° and click Rotate and download. Free, in your browser.
Read the guide →How to convert JPG to WebP: the Direto Notícias case study
Direto Notícias converts photos from JPG to WebP in AtlasDocs, in the browser, and made its images up to 70% lighter. See the workflow and repeat it on your site.
Read the guide →How to split a PDF into multiple files or extract just some pages
To split a PDF into multiple files, click Split and download ZIP: you get one PDF per page. To take just some pages, use Extract pages. Free, in your browser.
Read the guide →How to password-protect a PDF and actually lock a document down
To password-protect a PDF, type a password of at least 4 characters and click Protect and download: the file comes out encrypted, free, without leaving your browser.
Read the guide →How to convert PDF to Word keeping the formatting, even scanned
To convert a PDF to Word keeping the formatting, use the AtlasDocs converter in Faithful Copy mode: it reads even scanned PDFs. The conversion runs on our server.
Read the guide →How to compress a PDF without losing quality (and what won't shrink)
You can compress a PDF without losing quality: AtlasDocs rewrites the file in a more compact form without touching text or images, free and in your browser.
Read the guide →AWS architecture diagram: convert draw.io and Excalidraw
You can convert an AWS architecture diagram from draw.io to Excalidraw, and back, free in your browser, keeping official icons, arrows and colors. Here's how.
Read the guide →How to fill a PDF form online, without printing
You can fill a PDF form in your browser for free: if the PDF has fields, use the Fill form mode; if it doesn't, the Add text mode writes over the page.
Read the guide →How to number PDF pages: footer, 1 / N format and unnumbered cover
To number PDF pages, pick the format (1, 2, 3 or 1 / N), the footer position and whether the cover stays blank; click Number and download. Free, in your browser.
Read the guide →How to reduce image file size in one click, without blur
Reduce the file size of a JPG, PNG, WebP or GIF image with one click, free and right in your browser, without blurring it. Here is how it works and what to expect.
Read the guide →How to convert iPhone photos (HEIC) to JPG in your browser
You can convert an iPhone photo (HEIC) to JPG or PNG in seconds, free and right in your browser, with nothing to install. Here is how, and what changes in the file.
Read the guide →How to convert Excel to CSV for free, in your browser (XLSX to CSV)
Convert an Excel file (.xlsx) to CSV in three clicks, for free, right in your browser. Here is how, what changes in the sheet and what to check before importing.
Read the guide →How to Convert EPUB to PDF: Searchable Text or a Faithful Copy
You can convert EPUB to PDF for free, in your browser, in two modes: a searchable text PDF (the default) or a faithful copy of the look. See how and what each one keeps.
Read the guide →How to remove metadata and hidden data from a PDF before sharing
You can remove PDF metadata for free in your browser: upload the file, click clean and download a copy without the author, program, dates and other hidden data.
Read the guide →How to Convert PDF to PowerPoint (.pptx) for Free, in Your Browser
You can convert a PDF to PowerPoint in three steps, free, in your browser: each page becomes a slide with a faithful image of the page. See what is not editable.
Read the guide →How to convert Word, Excel and PowerPoint to PDF
You can convert Word, Excel and PowerPoint to PDF in a few clicks, for free, with nothing to install. The conversion runs on our server; here is how and what to expect.
Read the guide →Is editing a PDF online safe? It depends where the file is processed
Editing a PDF online is safe when the file never leaves your device. Here is how that works, how to spot a site that uploads, and what the exceptions are.
Read the guide →How to crop the margins of a PDF (or focus on just one part)
To crop a PDF, adjust a rectangle over the area that stays, choose whether it applies to all pages or just one, and click Crop and download. Free, in your browser.
Read the guide →How to organize the pages of a PDF: reorder, duplicate and extract
Organize PDF pages in your browser: move them with arrows to reorder, click thumbnails to duplicate or extract, and download a new file for each task. Free.
Read the guide →How to add a header and footer to a PDF, no installs needed
You can add a header and footer to a PDF for free in your browser: type the text, pick the alignment and size, and download the finished file in seconds.
Read the guide →How to highlight text in a PDF on every page at once
You can highlight text in a PDF for free in your browser: type the word or phrase, pick a color and download the file with every match marked on every page.
Read the guide →How to add an image to a PDF: logo, signature or stamp
You can add an image to a PDF for free in your browser: choose the file, click the page where it goes, adjust the size and download the finished PDF in seconds.
Read the guide →How to compare two PDFs and see what changed between versions
You can compare two PDFs for free in your browser: upload the old and the new version and see, page by page, what was added, removed or changed.
Read the guide →How to remove a password from a PDF you can already open
You can remove a password from a PDF for free in your browser: type the current password, click remove and download a copy that opens directly. You need the password.
Read the guide →How to block printing, copying and editing of a PDF (permissions)
You can block printing, copying and editing of a PDF for free in your browser: check what to lock, set an owner password and download a file that still opens freely.
Read the guide →How to edit PDF metadata (title, author and subject)
You can edit PDF metadata for free in your browser: type a new title, author or subject, click apply and download the file with its document properties updated.
Read the guide →How to convert JPG and PNG to PDF: several photos in one file
You can convert JPG and PNG to PDF and combine several images into one file, one per page, in three steps, free, in your browser. See how to order them and what you get.
Read the guide →How to convert TXT, Markdown or HTML to PDF in your browser
You can turn a .txt, a .md or a saved HTML page into a PDF in three steps, free, in your browser. See which tool to use and what each PDF keeps.
Read the guide →How to Convert CBZ and SVG to PDF in Your Browser, No Install Needed
You can convert a CBZ comic or an SVG drawing to PDF in three steps, free, in your browser. See what each conversion keeps and where it has limits.
Read the guide →How to Convert JSON or YAML to PDF: Table, Chart, Tree or Code
You can convert JSON or YAML to PDF for free, in your browser, choosing table, chart, tree or color-coded code, with a theme and a logo. See how and what you get.
Read the guide →How to Convert PDF to Editable Excel or Word in Your Browser
You can convert a PDF to an Excel sheet or to editable Word with one click, free, in your browser; Word even takes scanned PDFs. See what you get and the limits.
Read the guide →How to Convert PDF to Markdown (.md) for Free, in Your Browser
You can convert a PDF to Markdown in three steps, free, in your browser: headings, lists and emphasis are inferred and the .md downloads at once. See the limits.
Read the guide →How to Convert PDF to EPUB: Text E-book or Faithful Page Copy
You can convert PDF to EPUB for free, in your browser, in two modes: a text e-book that fits the screen (the default) or a faithful copy of each page. See which to pick.
Read the guide →How to Turn a PDF into an MP4 Video with Music, Free in Your Browser
You can turn a PDF into a Full HD MP4 video in three steps, free, in your browser: each page becomes a frame, with optional music. See the timing rule and the format.
Read the guide →How to convert an image format (PNG, JPG, WebP, GIF, BMP)
Convert an image format in seconds: upload the file, pick PNG, JPG, WebP or GIF and download it, free and in your browser. BMP has its own tool. See when to use each one.
Read the guide →How to rotate and flip an image that's sideways or mirrored
To rotate a sideways image, pick 90°, 180° or 270° and download; to fix a mirrored selfie, flip it horizontally. Free, in your browser, in seconds.
Read the guide →How to convert SVG to PNG and TIFF or AVIF to JPG
Convert an SVG to a PNG with a transparent background, or a TIFF/AVIF to a JPG that opens anywhere, in seconds, free and in your browser. See how, and the limits.
Read the guide →How to optimize an image for LinkedIn and create a quote card
Optimize an image for LinkedIn: pick the format, Fill or Fit, decide whether to keep the photo's data and download it as JPG. Or create a quote card. Free, in your browser.
Read the guide →How to remove metadata from photos, documents and videos
Remove metadata from photos (JPG/PNG), Office documents and audio/video with one click, free and in your browser, with no quality loss. See what goes and what stays.
Read the guide →How to remove the hidden AI mark from an image
To remove the AI mark from a JPG or PNG image, upload the file and click "Remove and download": the invisible label goes, with no quality loss. Free, in your browser.
Read the guide →How to turn images into a PowerPoint presentation
Turn images (JPG, PNG, WebP, GIF) into a PowerPoint with one per slide, in the order you set, free and in your browser. Here is how, and what to expect from the .pptx.
Read the guide →How to create a Mermaid diagram and export PNG, SVG or Excalidraw
You can write a Mermaid diagram, watch the live preview and download it as PNG, SVG or editable Excalidraw, free and in your browser. Here is how, plus the limits.
Read the guide →How to convert old .doc, .xls and .ppt files to .docx, .xlsx and .pptx
You can convert an old Office file (.doc, .xls, .ppt) to the modern format in three clicks, for free. The conversion runs on our server; here is how and what to expect.
Read the guide →How to convert ODG (LibreOffice Draw) to PDF
You can convert a LibreOffice Draw .odg drawing to PDF in a few clicks, for free, without having the program installed. The conversion runs on our server; here is how.
Read the guide →How to convert Word (.docx) to an EPUB ebook
You can convert a Word document (.docx) to an EPUB ebook in a few clicks, for free, keeping headings, lists and images. The conversion runs on our server; here is how.
Read the guide →How to open files your computer can't open, without installing
You can open PSD, DXF, STL, Jupyter notebooks, .eml/.msg emails and XML invoices in your browser, free and with nothing to install. See each format and what shows up.
Read the guide →How to password-protect Word, Excel and PowerPoint files
You can put a password on a .docx, .xlsx or .pptx file in three steps, free and in your browser: the document and the password never leave your device. Here is how.
Read the guide →How to convert MOBI, AZW3 or FB2 e-books to EPUB (and EPUB to MOBI)
You can convert MOBI, AZW3 and FB2 to EPUB, EPUB to MOBI and AZW3 to PDF, free and in your browser, as long as the book has no DRM. Here is how and what to expect.
Read the guide →How to convert EPUB to Word, Markdown or HTML (and back)
You can convert EPUB to Word, Markdown or HTML, Markdown to Word or HTML, HTML to Word or Markdown and Word to Markdown, free and in your browser. Here is how.
Read the guide →How to convert JSON to YAML, YAML to JSON and XML to JSON
Converting JSON to YAML, YAML to JSON or XML to JSON takes one click, for free, in your browser. Here are the three paths, what is preserved and what AtlasDocs won't do.
Read the guide →How to convert CSV, JSON and Excel to each other (free, online)
Converting CSV to JSON, JSON to Excel, Excel to JSON, JSON to CSV or CSV to Excel takes one click, for free, in your browser. Here is how, and what each path preserves.
Read the guide →How to convert CSV or JSON to SQLite (.db) and query it with SQL
Converting CSV or JSON to SQLite takes one click, free, in your browser: you get a .db with a "dados" table ready for SQL. Here is how, what changes and how to go back.
Read the guide →How to compress and open ZIP, 7z and GZIP files in your browser, free
You can create ZIP, 7z and GZIP, open what you received (even RAR), add or remove a password and convert between formats for free, in your browser. Here is how.
Read the guide →How to convert a video to MP4 for free, in your browser
You can convert MOV, MKV, AVI, WebM or M4V to MP4 in three clicks, free and with nothing to install: the video keeps its resolution and never leaves your device.
Read the guide →How to extract the audio from a video and save it as MP3
You can extract the audio from a video (MP4, MOV, WebM, MKV, AVI or M4V) and save it as a high-quality MP3 in three clicks, free, with nothing leaving your device.
Read the guide →How to merge several videos or several MP3s into one file
You can join two or more videos into one MP4, and several MP3s into one track with leveled volume, in the order you choose, free, with nothing leaving your device.
Read the guide →How to make a video from photos with music (slideshow), free
You can make a video from photos with background music, in Full HD, in three clicks, free and with nothing to install. See how long each photo stays and what to expect.
Read the guide →How to view files online, with nothing to install
You can open PDFs, photos (even HEIC), audio, video, EPUB, CSV, TXT, JSON and .ics invites in your browser, free, with nothing leaving your device. See what opens.
Read the guide →How to view a file's metadata (and what it reveals)
You can view the metadata of a PDF, photo, Office file, audio, video or ZIP in two clicks, free, with nothing leaving your device: author, program, date and GPS.
Read the guide →How to copy all the text from a PDF at once (free)
To copy the text from an entire PDF, upload the file, click "Extract and download" and get a .txt with every page, for free and in your browser. Here is what to expect.
Read the guide →How to open Word, Excel and PowerPoint online without Office
You can open a Word, Excel or PowerPoint file online without installing Office: send it to the viewer and see the document looking like the original, free.
Read the guide →How to convert scanned PDFs, Word and tables to Markdown
You can convert a scanned PDF, a Word file or tables into Markdown with headings, lists and tables in place, free, on our server, and turn Markdown into a PDF.
Read the guide →