Guides
How to Compress a PDF Without Losing Quality
Learn what makes a PDF large, which compression setting keeps text and images sharp, and how to compare the result before you send it.
8 min read
Guides
PDF and image guides
Plain-language help for everyday file jobs: getting a PDF under an upload limit, converting to Word or Excel, cleaning up a scan, or choosing an image format. Each guide walks through the steps and explains the trade-offs, so you know what to check before you send the file.
Start here
Good first reads if you are not sure where to begin.
Guides
How to Merge Multiple PDFs Into One Document
Combine PDFs in the order you want, choose pages from each file and check the result. Also covers what merging changes: forms, bookmarks and signatures.
8 min read
Guides
How to Convert PDF to Word and Fix What Breaks
Turn a PDF into an editable Word document, pick the right mode for typed or scanned pages, and repair the tables, columns and fonts that shift on the way.
8 min read
More guides
Guides
Federal Court E-Filing: CM/ECF PDF Requirements and Rule 5.2 Privacy
Each federal court sets its own CM/ECF limits, from 30 to 75 MB per PDF in the courts we checked, and Rule 5.2 says what to redact. Prepare a PDF that passes.
8 min read
Guides
UK Visa and EU Settlement Scheme Uploads: File Types and Size Limits
UK visa evidence must be PDF, PNG, JPG or JPEG files, and the EU Settlement Scheme takes up to 10 residence documents of 6 MB each. Prepare files that upload first time.
6 min read
Guides
IRS Document Upload Tool: File Types, Size Limits and Page Limits
The IRS Document Upload Tool takes JPG, PNG and PDF files when you answer a notice or letter: up to 40 files of 15 MB each, 120 pages per file. Prepare files that go through.
6 min read
Guides
HMRC Document Uploads: Compliance Checks and Customs Declarations
HMRC compliance-check uploads take up to 10 files of 15 MB, and Customs Declaration Service uploads up to 10 files of 10 MB. The accepted formats differ, so check first.
5 min read
Guides
USCIS Online Filing: Evidence Upload Rules, File Size and Format
USCIS accepts evidence as PDF, JPG or JPEG files of up to 12 MB each, unlocked and easy to read. Prepare scans, translations and large files so every upload goes through.
8 min read
Guides
Horizon Europe Proposal PDF: Page Limit, Formatting and Upload Rules
Part B must be an unlocked A4 PDF in 11-point type within the page limit: 40 pages in the standard RIA and IA template. Check and fix the file before the coordinator uploads it.
9 min read
Comparisons
JPG vs PNG vs WebP vs AVIF: Which Image Format to Use
JPG for photos, PNG for screenshots and transparency, WebP for websites, AVIF for the smallest files. Learn why, and how to convert between them.
8 min read
Guides
Compress vs Resize Images: Which Reduces File Size?
Resizing cuts the number of pixels; compressing stores the same pixels in fewer bytes. Learn which one your image needs and the order to do them in.
8 min read
Guides
Remove an Image Background and Refine the Edges
Remove a photo’s background in your browser, then fix hair, halos and gaps with the Erase and Restore brushes before exporting a clean PNG, WebP or JPG.
8 min read
Guides
Edit Images in Your Browser: Crop, Resize, Compress, Export
Crop, resize, convert and compress photos without uploading them. Learn the order that protects quality, which format to pick and how to check the result.
9 min read
Guides
PDF to Excel: Extract Tables, Check Cells and Export
Turn the tables in a PDF into an Excel workbook: choose the right pages, read scanned tables with OCR, fix cells before export and check the totals.
9 min read
Guides
Excel to PDF: Control Worksheets, Scaling and Page Layout
Stop columns from spilling onto extra pages. Choose the worksheets, paper size and scaling, then check the real PDF pages before you send the file.
8 min read
Guides
PDF to PowerPoint: Choose Visual or Editable Text Mode
Turn PDF pages into PowerPoint slides. See when Visual mode is right, when Editable text works, how to pick a slide size and what to check in the deck.
7 min read
Guides
PowerPoint to PDF: Export Slides, Handouts or Notes
Save a PowerPoint deck as a PDF of full slides, a printable handout or speaker notes pages. Choose slides, handle hidden ones and check the result.
7 min read
Guides
How to Edit Existing Text in a PDF, and When You Can’t
Change words in a PDF without the original file. Learn which text can be edited, how to replace a word everywhere, and what to do with scanned pages.
9 min read
Guides
Compare Two PDFs: Find Text and Visual Changes
Find out exactly what changed between two versions of a PDF. Compare wording and page appearance, handle scans and shifted pages, and export a report.
8 min read
Guides
HTML to PDF: How to Make Print-Ready Pages
Turn an HTML file into a clean PDF: make the page self-contained, set paper size and margins, control page breaks with CSS and check every page.
9 min read
Guides
USAJOBS Resume PDF: Two-Page Limit, File Size and Format
USAJOBS accepts resumes of two pages or fewer, 5 MB or smaller, on 8.5 × 11-inch pages. Export a PDF that meets every rule and check it before you apply.
9 min read
Guides
Europass CV PDF: How to Check, Shrink and Upload It
Download your Europass CV as a PDF, check it against the employer’s upload rules, and shrink or merge it only when the job portal asks you to.
8 min read
Tips
Why Is My PDF Upload Rejected? A Troubleshooting Checklist
A rejected PDF upload usually comes down to size, file type, a password, damage, the file name or the page count. Find the cause and apply the right fix.
9 min read
Guides
A4 vs US Letter: Size Differences and How to Set Up a PDF
A4 is 210 × 297 mm and US Letter is 8.5 × 11 inches. Learn why the difference matters, how to check a PDF’s page size, and how to set or change it.
7 min read
Guides
Make French and German Scanned PDFs Searchable with OCR
Choose French or German in OCR PDF, recognize the text, and create a searchable PDF. Then check accents, umlauts, ß, amounts and reference numbers.
8 min read
Guides
Grants.gov PDF Attachments: A Pre-Submission Checklist
Prepare Grants.gov attachments the agency will accept: name files correctly, export real PDFs, check page limits and size, and attach them properly.
7 min read
Comparisons
PDF vs PDF/A: The Difference and When You Need Each
PDF is built for sharing; PDF/A is built to look the same decades from now. See what PDF/A requires, which version to ask for, and how to convert and validate a file.
8 min read
Guides
How OCR Works: From Scanned PDF to Searchable Text
See how OCR turns a picture of a page into text you can search and copy, what affects its accuracy, and how to run it on a scanned PDF and check the result.
8 min read
Tips
8 Ways to Reduce PDF File Size (and When to Use Each)
Find out what is making your PDF large, then choose the fix that fits: fewer pages, a cleaner export, lighter scans, or compression to an exact size limit.
8 min read
Comparisons
Electronic vs Digital Signatures: What Each One Proves
An electronic signature shows that you agreed. A digital signature also proves who signed and that nothing changed afterward. Here is how to tell which one your PDF needs.
9 min read
Security
How to Password-Protect a PDF with AES-256 Encryption
Add an opening password to a PDF, choose one that holds up against guessing, and learn what permission settings can and cannot stop a reader from doing.
7 min read
Security
Browser vs Server PDF Processing: Where Your File Goes
Some PDF tools work on your file inside the browser and others upload it. Learn the difference, which PDF Logic tools do which, and how to check for yourself.
7 min read
Guides
How to Extract Pages from a PDF
Pull the pages you need out of a long PDF as one new file, one file per page, or several sections at once. Covers range syntax and what to check afterward.
7 min read
Guides
How to Make a PDF Accessible: Tags, Reading Order, Testing
What an accessible PDF contains, how to export one from Word, how to test it with free tools, and which PDF edits quietly strip the structure out.
9 min read
Guides
How to Add a Watermark to a PDF: Text, Logo or Pattern
Stamp DRAFT, CONFIDENTIAL or your logo on a PDF, choose which pages get it, and keep the page readable. Plus what a watermark can’t protect.
8 min read
Security
PDF Redaction: How to Remove Sensitive Information for Good
A black box drawn over text hides it without deleting it. Here is how real redaction works, how to do it in PDF Logic, and how to prove the text is gone.
8 min read
Tips
How to Organize a Large PDF: Reorder, Number and Split Pages
A working order for long PDFs: clean up and reorder the pages, number them once the order is final, then split out the sections people need.
8 min read
Guides
How to Convert Images to PDF: Page Size, Fit and Quality
Turn photos, scans or screenshots into one tidy PDF: pick the right page size, avoid cropped edges, and keep text sharp without creating a huge file.
8 min read