AlphaPDF Journal

Ideas for every page.

Articles and resources from the AlphaPDF team.

Illustration contrasting a scanned page with selectable text, using a magnifying glass and text cursor.

Guides

Why can’t I select text in a PDF?

Check selection tools, copying permissions and scanned pages before choosing OCR or editing. Includes a three-page diagnostic example and a final-file checklist.

Oct 9, 20263 min read

Illustration of metadata tags separated from a document while a magnifying glass examines its visible content.

Guides

How to remove PDF metadata before sharing

Remove hidden PDF metadata, then check what remains visible. A practical sanitization workflow, two-page example and final-file checklist.

Oct 8, 20263 min read

Example mapping: cover at position 1, contents at 2–3, report pages 1–2 at 4–5, and printed pages 3–5 at positions 6–8.

Guides

Why PDF page numbers do not match your reader

Map printed numbers to PDF file positions before extracting a range. Includes a front-matter example, numbering-restart checks and download verification.

Oct 7, 20263 min read

Editorial illustration of a document under a magnifying glass beside a certificate card and clock.

Guides

How to verify a digital signature on a PDF

Inspect signature integrity, revision coverage, certificate trust and timestamps. Learn to read an intact-but-untrusted result using a real synthetic example.

Oct 6, 20263 min read

Three illustrated documents with different page proportions on a blue desktop.

Guides

Why are merged PDF pages different sizes?

Check source page dimensions, zoom and print scaling before changing an uneven PDF packet. Includes a three-page example and practical fixes.

Oct 5, 20263 min read

AlphaPDF editor with a synthetic two-page report, page thumbnails, Delete and Add PDF controls.

Guides

How to replace one page in a PDF without keeping the old version

Replace an outdated PDF page with a corrected one, remove the old version and check the final order with a four-page worked example.

Oct 4, 20263 min read

Six-page example: remove confirmed blank pages 2 and 6, keep the faint note on page 4, and retain four pages.

Guides

How to remove blank pages from a scanned PDF

Check blank backs, faint notes and intentional dividers before deleting pages. Follow a six-page example and verify the saved PDF.

Oct 3, 20263 min read

Illustration of document sheets becoming a compact stack beside an email envelope and a magnifying glass.

Guides

How to compress a PDF for email and check every attachment

Check the total size of your email attachments, make a readable compressed PDF copy and decide when a sharing link is the better handoff.

Oct 2, 20263 min read

Illustration of three separate paper stacks joining into one organized document

Guides

How to merge PDF files free into one document

Combine separate PDFs into one file, understand the free export allowance and check a six-page example before sending your result.

Oct 1, 20263 min read

AlphaPDF PDF upload page showing the file picker and published input limits.

Guides

PDF upload not working? Check format, size and access first

Check the input type, file size and whether the PDF opens before repeating a failed upload.

Sep 27, 20261 min read

AlphaPDF Recent documents controls with a synthetic example document.

Guides

Before deleting a PDF workspace, save these files

Save and inspect all wanted originals and results before removing a document job from AlphaPDF.

Sep 27, 20261 min read

AlphaPDF Recent documents controls with a synthetic example document.

Guides

How to return to an AlphaPDF editing workspace

Use Recent documents to locate an available workspace in the browser session or account that created it.

Sep 27, 20261 min read

AlphaPDF split controls with a synthetic example document.

Guides

Downloaded a ZIP after splitting a PDF? Here is what to check

Find the separate PDF parts inside a split download and check that you saved every section you need.

Sep 27, 20261 min read