Blog
Write-ups with real screenshots, plus every guide and how-to on the site in one place.
Blog
What actually happens when you edit PDF text and keep the same font
Blog
Redacting a PDF properly — and then trying to un-redact it
Blog
Signing a PDF on your phone — no app, no upload, no printer
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Cropping a PDF's margins — what actually changes in the file
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Getting the actual images out of a PDF, not screenshots of them
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Inside a PDF repair: four strategies, and which one worked
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One application, five sources: assembling a single PDF that reads right
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Why a PDF gets huge, and what compression really does about it
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One document, several tools, and a receipt for the whole chain
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Merging PDFs properly: order, size, what survives, and what to check
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Getting the images out of a PDF at the quality they went in
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Signing a PDF in your browser: the three signature methods and what each one is
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Turning a PDF table into a spreadsheet you can actually sum
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Three ways to split a PDF, and when each one is right
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Converting a PDF to an editable Word file: what you get back
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Converting Word to PDF so the text arrives intact — including Cyrillic, Greek and more
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Balanced and Maximum: what each compression mode actually does to your file
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Cropping a PDF: the same crop on every page, and what a crop box really does
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A redaction checklist: remove, verify, log, and only then send
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Making a scan searchable in any of 126 languages, without uploading it
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Editing text in a PDF so nobody can see it was edited
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Invoices in, one numbered bundle out: a monthly routine that takes ten minutes
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Getting twelve months of statements into one sheet, on your own machine
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Building the application bundle recruiters actually want
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An onboarding pack that is signed, final, and private
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A teacher's week in PDFs: worksheets, slips, scanned homework
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A production you can defend: redact, number, label, and log — with hashes
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Choosing a free PDF editor when the document must stay on your machine
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Using PDF tools without signing up — and what you are trading when a site makes you
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Two tools, one compliant-sized photo: background removal, then the country preset
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Sharing a statement with a landlord or broker without sharing everything
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From a 400-page scan to searchable chapters, on your own computer
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Archiving a PDF properly: PDF/A-2b, explained without the standard's jargon
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Crop or redact? The one question that decides it: does the content have to be gone?
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Two ways to finalise a marked-up PDF, and which one your recipient wants
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Photos inside the PDF, or pictures of the pages? Two tools, one decision
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Recognise first, or extract now? One check tells you which tool
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Over the limit: compress, split, or shrink the pictures — which one, in which order
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Locked PDFs: open, unlock, re-protect — and why no tool here guesses passwords
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From a phone photo to a straight, searchable, small PDF — four steps on the phone
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Three stamps that look alike and do different jobs
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Spotting the change in a revised contract without reading every line
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Text stays text, or turns into a picture: what each tool does to your document
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The author field you forgot: cleaning a PDF's metadata before it leaves
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Why the page is sideways again: view rotation vs saved rotation
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Wrong paper size: fitting a PDF's pages to A4, Letter, A5 or a custom size
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A watermark tells people what a copy is; it does not stop them. Use it for that.
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From pasted HTML to a real PDF: page breaks, running headers, selectable text
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One page as a crisp picture: choosing the DPI and the format
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One book in, one file per chapter out — using the outline the author already made
Blog
What happens when you OCR a scan here: engine, language packs, confidence
Guide
Adding text vs editing existing text in a PDF — two different jobs
Guide
Bates numbering — what it is, the conventions, and how to stamp a production set
Guide
Why is my PDF blurry — and which blur can actually be fixed
Guide
Can the old text be recovered after you edit a PDF?
Guide
How to cancel a PDF operation safely
Guide
Is that redaction real? Check a redacted PDF for text still under the boxes
Guide
How to compress a 100MB PDF locally
Guide
How to compress a PDF for email without wrecking quality
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How to compress a PDF for government portals (USCIS, visa and application systems)
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How to compress a PDF to 100KB (and when that's possible)
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How to compress a PDF to under 1MB
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How to compress a PDF to under 2MB
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How to compress a PDF to 500KB without wrecking it
Guide
How to convert a document with Cyrillic or Greek text to PDF
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How PDF editors keep the same font — or quietly fake it
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How to edit text in a PDF — change existing text and keep the same font
Guide
How to edit text in a scanned PDF — with local OCR
Guide
Stamp exhibits for a filing — labels, cover sheets and an index, in batches
Guide
Extract original embedded images vs converting PDF pages to JPG
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How to extract every image from a PDF at once
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How to extract images from a PDF without taking screenshots
Guide
How to extract text from a PDF — the four routes that actually work
Guide
Get the text out of a PDF — plain text or Markdown, in reading order
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How to flatten annotations, comments and stamps into a PDF
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Add running headers and footers to a PDF — titles, dates, page X of N, filenames
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How to process a large PDF without uploading it
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How UnboundPDF handles large PDFs locally
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Large PDFs on desktop vs mobile — what we measured
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How to merge and compress a PDF on Android without an app
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How to merge and compress a PDF on iPhone without an app
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How to merge and compress PDFs on a Mac
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How to merge and compress PDFs on Windows 10 and 11
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Guide
How to merge PDFs privately (no upload)
Guide
How to OCR a large scanned PDF without freezing
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How to OCR a PDF in more than 100 languages
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How to OCR a scanned PDF in your browser
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Passport photo sizes by country — and how to make one at home
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PDF opens blank: the five things that actually cause it
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PDF fonts not displaying correctly — why the same file looks different on every machine
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PDF Privacy Lab — prove no-upload with DevTools
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Why typed cells matter when you convert a PDF to Excel
Guide
PDF tools for accountants — statements, invoices and year-end archives
Guide
PDF tools for freelancers — proposals, contracts, invoices and portfolios
Guide
PDF tools for HR — CVs, contracts, onboarding packs and redaction
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PDF tools for lawyers — contracts, exhibits, redaction and archival
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PDF tools for real estate — listing packs, disclosures and deeds
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PDF tools for small business — quotes, invoices, staff forms and records
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PDF tools for students — assignments, thesis chapters and scanned readings
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PDF tools for teachers — worksheets, handouts and scanned homework
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Why won’t my PDF open? Diagnose it, then repair it locally
Guide
How to redact a PDF so the text is actually gone
Guide
A redaction log you can hand over — every region, verified on the final bytes
Guide
Remove the background from a portrait — in your browser, no upload
Guide
Remove a watermark from a PDF — when it is possible, and when it is not
Guide
Resize an image to a file size or pixel size — without guessing
Guide
How to split a PDF by its bookmarks or chapters
Guide
Why browser PDF tools freeze on large files
Guide
Why can’t I edit text in my PDF? The 7 real reasons
Guide
Why in-browser PDF tools are faster — measured
How-to
Compress a PDF without uploading
How-to
How to crop a PDF without uploading it
How-to
Flatten a PDF without uploading
How-to
How to find and redact SSNs, IBANs and card numbers in a PDF
How-to
How to OCR a PDF in Vietnamese, Polish or Turkish
How-to
How to split a book PDF into chapters
How-to
Convert JPG to PDF without uploading
How-to
How to merge PDF files without uploading them
How-to
OCR a PDF without uploading
How-to
Convert PDF to Excel without uploading
How-to
Convert PDF to JPG without uploading
How-to
Convert PDF to Word without uploading
How-to
Password-protect a PDF without uploading
How-to
Redact a PDF without uploading
How-to
How to rotate PDF pages in your browser (and make it stick)
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How-to
How to sign a PDF in your browser (without uploading it)
How-to
How to split a PDF without uploading it
How-to
Unlock a PDF without uploading
How-to
How to watermark a PDF without uploading it
How-to