Articles
The Flint PDF library
Short, practical pieces on PDFs — fixing a typo, signing a contract, getting a file under 25 MB, picking the right format, dealing with awkward scans. 965 articles and counting.
How to Add Clickable Hyperlinks to a PDF (Web Links, Email, Internal)
Turn URLs, emails, and section references into clickable hyperlinks inside a PDF.
3 minReadHow to Add Images to a PDF (Photos, Logos, Diagrams, Screenshots)
Insert logos, photos, screenshots, or diagrams into a finished PDF with full control over size and placement.
3 minReadHow to add initials to a PDF
Initials per page is an old habit. Here's how to do it electronically without it taking forever.
3 minReadHow to Add or Edit PDF Metadata (Title, Author, Keywords)
Edit PDF title, author, subject, and keywords — the metadata that drives search results, library systems, and document management.
3 minReadHow to Add Multiple Pages to a PDF From Different Sources
Add new pages to an existing PDF — from other PDFs, from images, or as blank templates — without disturbing the original.
3 minReadHow to add multiple signatures to a PDF
Co-founder agreements, deeds, partnership docs — here's how to fit several signatures on one PDF without breaking them.
3 minReadHow to Add Notes and Comments to a PDF for Review
Add sticky notes, highlights, and review comments to a PDF without changing the underlying content.
3 minReadHow to Add Editable Text Boxes to a PDF
Add editable text boxes to any PDF — for filling forms, labelling images, or writing notes directly on the page.
3 minReadHow to Archive PDFs Long-Term
Long-term PDF archives need PDF/A format, redundant backup, and a stable folder structure. Here is the setup that lasts.
4 minReadHow to Attach a PDF to an Email Without Hitting Size Limits
Get a PDF attached to an email even when it exceeds Gmail, Outlook, or corporate size limits.
3 minReadHow to avoid PDF tools that train AI on your files
Your sensitive PDF in a training set is forever. Here's how to keep yours out.
4 minReadHow to Back Up Your PDFs
Two-layer backup strategy — cloud sync plus quarterly cold backup — keeps your PDFs safe from accidents and provider failures.
4 minReadHow to Batch Merge PDFs in One Pass
Combine many PDFs into one in a single operation, with ordering, bookmark preservation, and optional compression.
3 minReadHow to Batch Process Incoming PDFs (Once a Day, In)
Switching context to every incoming PDF kills focus. A daily batch processing window handles the lot in one shot, faster than you'd think.
4 minReadHow to Batch Rename PDFs With a Consistent Naming Convention
Rename whole folders of PDFs in one go with a naming convention that survives sorting, search, and archiving.
3 minReadHow to Bates-Stamp PDFs Without Losing Your Mind
Apply consistent Bates numbering to PDFs for discovery, trial bundles, and exhibit packs without manual page-by-page work.
4 minReadHow to Bookmark Multiple Pages in a PDF for Quick Navigation
Bookmark multiple pages in a long PDF efficiently — build a navigable outline without doing each one by hand.
3 minReadHow to Build a CMA PDF Report That Wins Listings
Build a CMA PDF that vendors actually read — comparables, photos, rationale, and a cover page that closes the listing meeting.
4 minReadHow to Build a Course Pack PDF for a Term
Build a term-long course pack as one indexed PDF — readings, worksheets, and assessment criteria students can find in seconds.
4 minReadHow to Build a One-Pager PDF That Lands
Build a one-pager PDF that fits the story on one page and lands harder than a full deck for many situations.
3 minReadHow to Build a PDF Portfolio for Design, Photography, or Writing
Build a polished PDF portfolio that loads fast, looks designed, and tells your story across 10-20 pages.
4 minReadHow to Build a PDF Style Guide
A PDF style guide makes every outbound document feel like the same brand. Four sections, one page, applied to every export.
4 minReadHow to Build a PDF Template Library
If you keep building similar PDFs, you don't need creativity — you need templates. A small template library saves multiple hours every month.
4 minReadHow to Build a Personal PDF Cheatsheet
A one-page personal PDF cheatsheet captures your workflow, tools and conventions. Portable, shareable, and the basis of consistent habits.
3 minReadHow to Build a Press Kit PDF
Build a press kit PDF that journalists can use — bio, headshots, project info, contact — without chasing you for assets.
4 minReadHow to Build a Pricing PDF for Freelance Services
Build a pricing PDF that helps prospects decide rather than negotiate — clear tiers, deliverables, and a path to yes.
4 minReadHow to Build a Team PDF Cheatsheet
A team PDF cheatsheet aligns the whole team on tools, naming and signing conventions. Onboards new joiners in 20 minutes; keeps everyone consistent.
4 minReadHow to cancel a PDF signature request
Cancelling is cleaner than letting bad requests linger. Here's the process.
3 minReadHow to cancel Adobe Acrobat and switch to a cheaper tool
Cancelling Acrobat is fiddlier than signing up. Here is the practical exit path, and how to land softly on a cheaper tool.
5 minReadHow to Change PDF Margins for Printing or On-Screen Viewing
Resize PDF margins for printing, binding, or screen reading — without re-exporting from Word.
3 minReadHow to Change PDF Page Size (A4 to Letter, A3 to A4, Custom)
Resize a PDF to a different page size — A4 to Letter, A3 to A4, custom — with control over how the content scales.
3 minReadHow to Change the Author of a PDF
Update the author field on a PDF's metadata — useful for ghostwriting, white-labelling, and document privacy.
3 minReadHow to Change the Colour of Text in a PDF
Change the colour of text in an existing PDF — for branding, highlighting changes, or accessibility.
3 minReadHow to Change the Language Setting of a PDF for Accessibility
Set the document language metadata on a PDF so screen readers, search engines, and accessibility tools handle it correctly.
3 minReadHow to Check if a PDF is Signed and Verify the Signature
Verify whether a PDF has been digitally signed, check who signed it, and confirm the signature is still valid.
3 minReadHow to Check if a PDF is Accessible (Screen Readers, Tags, Alt Text)
Check whether your PDF is accessible for screen readers — covering tags, alt text, reading order, and document language.
4 minReadHow to Check the Page Count of a PDF Quickly
Find a PDF's page count quickly — in any reader, file manager, or batch across a whole folder.
3 minReadHow to Clear Out a Cluttered PDF Folder
An afternoon and a sharp triage approach gets a chaotic PDF folder back to manageable. Here is the system.
4 minReadHow to Collate Discovery Documents Into a Defensible Pack
Turn a chaotic pile of discovery documents into a defensible, Bates-stamped PDF pack the other side can't pick holes in.
5 minReadHow to Collect Student Permission Slips Electronically
Collect signed permission slips electronically from parents — no chase, no missing slips on the morning of the trip.
4 minReadHow to Combine JPG Files Into a Single PDF
Combine several JPG images into one PDF — for receipts, photo evidence, or scan stitching.
3 minReadHow to Combine Medical Records Into One PDF
Combine medical records into one organised PDF — chronological, indexed, and ready for insurance reviews or second opinions.
4 minReadHow to Combine PNG Files Into a PDF Without Losing Quality
Combine multiple PNGs — screenshots, diagrams, design exports — into a single PDF with no quality loss.
3 minReadHow to Combine Scanned Pages Into a Single Searchable PDF
Combine separate scans into one searchable PDF — with OCR, deskew, and clean compression.
4 minReadHow to Compare Two PDFs and Spot the Differences
Compare two PDF versions to find every text, layout, or page-level difference between them.
3 minReadHow to Compile Tax Receipts Into One PDF
Turn a shoebox of receipts into one organised PDF that survives an HMRC enquiry and saves you hours at year-end.
4 minReadHow to Compress a Decks Folder in One Pass
Twenty oversized decks become 20 lean decks in one batch pass. Here is the workflow that compresses a whole folder without per-file clicking.
3 minReadHow to Compress a PDF by Half Without Visible Quality Loss
Cut a PDF's size by 50% without visible quality loss — what to compress, what to leave, and the right settings.
3 minReadHow to Compress a PDF Specifically for Email Attachments
Compress a PDF down to a size that fits Gmail, Outlook, and corporate email attachment limits.
3 minReadHow to Compress a PDF for Uploading to Web Forms and Portals
Compress a PDF to meet web form upload limits — visa applications, job forms, government portals.
3 minReadHow to compress a PDF on Android
Compress PDFs on Android in Chrome. Turn 40 MB scans into 4 MB attachments without losing quality.
3 minReadHow to compress a PDF on iPhone
Compress PDFs on iPhone in Safari. Turn a 40 MB scan into a 4 MB attachment without losing readable quality.
3 minReadHow to compress a PDF on Mac
Compress PDFs on Mac. Preview has a built-in option (rough); Flint does it smarter with quality control.
3 minReadHow to compress a PDF on Windows
Compress PDFs on Windows in the browser. Quality control, no install — better than Word's option and Acrobat's price.
3 minReadHow to Compress a PDF Textbook for Easier Distribution
Shrink a heavy PDF textbook so it downloads quickly on home internet — without making the diagrams unreadable.
3 minReadHow to Compress a PDF to Under 100KB
Compress a PDF down to under 100KB — what survives, what gets sacrificed, and the real tactics for tight limits.
3 minReadHow to Compress a PDF to Under 1MB
Compress a PDF down to under 1MB — practical tactics for tight upload limits without ruining quality.
3 minReadHow to Compress a PDF to Under 200KB
Get a PDF under 200KB — realistic tactics, image handling, and what to drop when limits are strict.
3 minReadHow to Compress a PDF to Under 500KB
Compress a PDF under 500KB — a common form upload sweet spot that preserves most visible quality.
3 minReadHow to Compress a PDF With Lots of Images Without Ruining Them
Compress a PDF packed with images — portfolios, photo essays, image-heavy reports — without ruining visible quality.
4 minRead