FileFixer AI guides
PDF and image guides for common upload problems.
Find the right guide when a file is too large, the format is wrong, an image needs exact dimensions, or a photo needs cropping before upload.
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PDF guides
Fix PDF size and format problems.
Use these pages when email, upload portals, forms, or document systems reject a PDF.
Compress PDF to 1MB online
Compress PDFs for upload limits and email attachments after logging in with daily free credits.
Compress PDF for email online
Reduce PDF file size for email attachments and online upload forms.
JPG to PDF online
Convert JPG images to PDF online with page size, portrait or landscape orientation, multi-photo layouts, optional captions, and fit controls.
PNG to PDF online
Convert PNG images to PDF online with reorder, preview, page size, orientation, optional captions, and multi-photo page layout controls.
Image guides
Prepare images for upload, web, and social use.
Resize, crop, compress, straighten, or correct perspective before you submit or share an image.
Photo perspective correction online
Correct photo perspective online for skewed document photos, building photos, signs, receipts, interiors, and angled images.
Straighten document photo online
Straighten skewed document photos online. Correct perspective for photographed papers, forms, receipts, signs, and upload images.
Straighten building photo online
Straighten building photos online with vertical perspective correction for architecture, property, interior, and real estate images.
Resize image to 1080x1080 online
Resize images to 1080x1080 for square social posts, product photos, and profile graphics.
Crop image to square online
Crop photos to a square 1:1 ratio online and download JPG, PNG, or WebP output.
Crop image for Instagram online
Crop images for Instagram square, portrait, stories, and reels with common ratios.
Compress image to 500KB online
Compress JPG, PNG, or WebP images toward a 500KB target online.
How-to guides
Step-by-step file workflows.
Follow short practical guides for common PDF and image tasks before running a tool.
How to compress a PDF for email
Compress a PDF for email attachments with private processing, clear credit estimates, and dashboard downloads.
How to reduce PDF size for upload
Reduce PDF size for upload portals, online forms, school systems, and business document submissions.
How to convert JPG to PDF with captions
Convert JPG images to a PDF with optional descriptions for product photos, inspection records, receipts, and reports.
How to convert multiple images to one PDF
Combine multiple JPG and PNG images into one PDF with reorder, preview, page size, margin, and fit controls.
How to resize an image to 1080x1080
Resize or crop images to 1080x1080 for square social posts, product photos, and profile graphics.
How to crop an image for Instagram
Crop images for Instagram square, portrait, landscape, stories, and reels using common ratios.
How to compress an image under 500KB
Compress JPG, PNG, or WebP images toward a 500KB upload target with resize, quality, and export controls.
How to convert PNG to PDF
Convert PNG screenshots, product images, and document images into one PDF with layout controls.
How to compress a PDF under 1MB
Compress a PDF toward a 1MB target for upload forms, email attachments, and online document portals.
How to compress a PDF under 5MB
Reduce PDF size toward 5MB for school portals, government forms, business uploads, and email attachments.
How to convert JPG to PDF
Convert JPG photos into one PDF with page size, image order, margins, fit controls, and optional captions.
How to resize an image for upload
Resize images for website forms, portals, product listings, profile photos, and exact pixel requirements.
How to crop an image to square
Crop an image to a square 1:1 ratio for profile photos, product grids, thumbnails, and social posts.