AirPDF
For papers. And the thought between the lines.
Dense paper. Clearer reading. Turn the page, reflow the text, find your focus—or listen. A quiet place for the next idea, right on your Mac.
Download for Mac Or turn a page right hereInteractive sample · Original demonstration pages, not a published paper.
01 / Same paper. More room.
Turn dense columns into a reading flow. Then switch on focus for gentler lines, measured space and a little guidance at the start.
One original example. The same words in both views.
AIRPDF / READING STUDY
A paper is more than the pages in front of you. It is a question, an argument, and a few lines that might change what you think. Start with the question you brought to the page, then follow the evidence at your own pace.
When a paragraph becomes difficult, give the argument a little room. Read the claim alongside the assumption that makes it possible. If a result feels surprising, return to the table, the definition, or the passage that came before it. The useful pause is the one that helps a thought take shape.
Keep the original close. A clearer layout should leave the words, the qualifications, and the question intact. Mark a line worth keeping, write down what remains uncertain, and leave yourself a place to begin again.
Original sample text, using AirPDF’s focus layout. This website does not convert uploaded PDFs.
Readable paragraphs, headings and tables, with adjustable type, leading and width. Local layout analysis; no AI rewriting.
⌘⇧RFocus keeps paragraphs connected, breaks long passages into measured groups, and can bold the first two words. Read freely, without forced pauses.
⌘⌥FComplex figures and formulas retain their original layout. Check a passage against the PDF, or run a pausable reflow review to locate possible issues.
Source, always in reach02 / Read around the argument
The appendix beside the result. The next sentence in your headphones. A reading desk that follows your attention.
Read the result in context. Keep the definition beside the claim.
12 / 28Layout illustration · Two independent reading panes
Open the paper on the left, its appendix—or another paper—on the right. Each side keeps its own page, zoom, search and reading mode.
⌘\Open a comparison
A paper is more than the pages in front of you. It is a question, an argument, and a few lines that might change what you think. Take the page at your own pace.A recording of AirPDF’s local English voice. Original demonstration text.
Listen to English text entirely on your Mac. Pause, change the pace, skip a sentence or follow its highlight. Your paper remembers the last passage for an explicit return.
⌘⌥LLocal English speech · macOS 13.4+03 / The familiar things, thoughtfully done
Paper turns, useful margins, and a place to return. Still here, still yours.
Physical page turns or familiar scrolling. Adjust the angle, zoom, paper warmth and grain until the page feels right.
⌘⇧BSwitch modesSelect, copy, highlight, underline or add a comment. Export an annotated copy while keeping the original PDF intact.
↳From a line to an ideaEach paper remembers its page, angle, zoom and reading mode. Bookmarks keep the places you want to revisit close at hand.
⌘DSave your place04 / A desk, not a dashboard
The reading tools stay out of the way until you need them. The things around your reading stay close.
Find the words, even across font ligatures, wrapped hyphens and formula spacing such as E[F] / E [F]. Jump to the source and return to your place.
Open Google Scholar beside your paper. Look up the next reference without losing your reading position.
Notes belong to their paper. Keep the source page, return to the passage, and search your notes across papers. Your older note pads stay available.
Rename, move, reveal or open papers from the toolbar. Paper of the Day picks the shortest PDF in a folder you choose.
Optional EconFM radio in the background. One click to play; one click to return to the quiet.
05 / Yours to keep
Reflow, focus and English speech run on your Mac. Your PDFs, notes, bookmarks and annotations stay local.
No AirPDF account or subscription. Reading and speech need no cloud service. Scholar and radio connect to their respective services when you choose to use them.
A few useful details
AirPDF 3.46 supports macOS 12.3 or later, on Apple Silicon and Intel. Local English speech requires macOS 13.4 or later. There is currently no Windows, Linux or mobile app.
Yes. Use the floating controls or press ⌘⇧B. Your current page is kept. Book mode defaults to two pages, with a manual single-page option.
No. Reflow and focus change the reading view. Notes, annotations and bookmarks are stored separately on your Mac. Exporting annotations creates a new PDF; the original stays intact.
AirPDF is a reader, not a PDF editor. It does not edit the original text, fill forms, sign documents or rearrange PDF pages. Search and selection need an existing text layer. There is no built-in OCR or AirPDF cloud sync.
Reflow uses the PDF’s existing text and layout. Dense columns, figures and unusual notation vary between documents. Complex or uncertain regions stay in their original form, with source checks and a pausable review panel. Scans without a text layer remain original pages; AirPDF does not run OCR or rewrite missing text.
No. The English voice, runtime and dictionary are included in the Mac app. Speech runs locally, using one English voice; it does not upload the paper. Images and complex formulas are not guessed aloud. Saved progress resumes only when you choose it, after the source passage is checked.
Search now shares normalization across original and reflow views, including E[F] / E [F], font ligatures and wrapped hyphens. Reflow review can scan the document, pause and locate possible issues. Read-aloud progress is saved per paper, with the source passage verified before you continue.
Open the DMG, quit any older AirPDF version, and drag AirPDF into Applications. Existing reading records and preferences are kept. This release is locally signed and has not been notarized by Apple.
Your reading list, with a little more room.
macOS 12.3+ · English speech: macOS 13.4+ · Locally signed, not Apple-notarized.