The honest PDF blog
No SEO-spam content farms. Long, useful posts on getting more out of PDFs, written by the team that built the tools.
How to prep documents and text for ChatGPT and Claude, free and in your browser
Cleaning, counting, chunking and scrubbing text before you paste it into an LLM saves money and protects your data.
How to count LLM tokens for free, and stop overpaying for API calls
Tokens, not words, decide what an LLM costs and whether your text fits.
Remove personal data before pasting into ChatGPT or Claude
Pasting logs, emails or spreadsheets into an LLM can leak names, card numbers, API keys and more.
How to chunk text for RAG the right way (size, overlap and boundaries)
Good retrieval starts with good chunks. Here's how to pick a chunk size and overlap, why sentence boundaries beat fixed windows, and a free browser tool…
Free OCR with no upload: read text from any screenshot or scan
Most free OCR sites upload your image to a server. Here's how to extract text from screenshots, scans and photos entirely in your browser, where the image…
How to resize an image to a specific KB size (for exam and visa forms)
Exam and visa portals demand photos under an exact size like 20, 50 or 100 KB.
How to compress a PDF for WhatsApp so it sends fast and saves data
WhatsApp allows documents up to 2 GB, but big files are slow to send and use up data. Here is how to shrink a PDF in your browser first.
How to redact a PDF in your browser, without uploading sensitive data
Redacting bank statements, ID scans, or contracts on a server you don't control is the privacy version of asking a stranger to hold your wallet.
How to resize PDF pages, A4 to Letter, Letter to A5, in a click
A doc on US Letter (8.5×11) often prints crookedly on European A4, and vice versa.
How to convert image to PDF on iPhone, Android, and laptop, no app needed
Every phone now has a built-in PDF export. Here's the fastest path on iPhone, Android, and on a laptop without installing anything, plus when to use a…
A free regex tester with no signup that runs in your browser
A regex tester that runs in your browser with no signup, and when a more powerful tool such as Regex101 is the better pick.
Convert CSV to JSON online in 2026, without uploading your data
Most CSV-to-JSON tools ask you to upload, then sit on your data 'for processing'. For a 10MB customer export with PII, that's not OK.
How to convert PDF to Word for free, no signup, no email, no upload
Every 'free PDF to Word' tool seems to want your email or a signup. Here's how to do it without either, plus the privacy trade-offs of the popular options.
How to extract pages from a PDF without uploading the whole document
Sometimes you only need pages 3–7 of a 200-page PDF. Here's how to extract them entirely in your browser, no upload, no waiting on a server, no Acrobat…
How to compress a PDF to 100KB, without losing readability
Most online forms cap PDF uploads at 100KB, 200KB, or 1MB. Here's how to actually hit those targets while keeping the document legible, and what to do when…
How to invert PDF colors, for dark-mode reading and ink-saving prints
White-on-black is easier on the eyes for long reading sessions and saves ink when printing on dark paper.
How to add a blank page to a PDF, anywhere, free, no upload
Insert blank pages into a PDF for duplex printing, workbook spacing, or chapter dividers. Browser-only, three clicks, page size matches automatically.
How to merge PDFs without uploading them anywhere
Most PDF mergers upload your files to a server. Here is how to combine PDFs entirely in your browser, with no uploads, and why it matters.
How to compress a PDF to 100KB without ruining quality
A practical guide to PDF compression: what actually shrinks files, the tradeoffs, and a free browser-only tool that does it well.
How to sign a PDF without DocuSign, free alternatives in 2026
DocuSign and Adobe Sign charge per envelope. Here is how to sign PDFs for free, and when an electronic signature is legally enough.
iLovePDF alternatives: 6 better options for 2026
iLovePDF dominates the PDF tool category but is showing its age. Here are six alternatives that beat it on speed, privacy, or design.