THE FORMFILE GUIDEBOOK
Practical guides for photos, signatures and PDFs
Find a clear answer, prepare the file and check it before you upload. These guides explain FormFile’s tools; always use the receiving portal’s current requirements.
Image size & formats
How to prepare a photo under 50 KB
Set a 50 KB ceiling while keeping the photo dimensions your application requires.
Prepare a file within a minimum and maximum KB range
Understand a range such as 20–50 KB and why increasing bytes does not restore detail.
KB, MB and pixels: which number should you change?
Separate file weight from image dimensions before editing application attachments.
Why a photo may stay above your target file size
Troubleshoot a missed target without silently changing required dimensions.
Resize a photo without stretching the face
Choose between proportional resizing, white margins and cropping.
Convert centimetres or inches into image dimensions
Use print units carefully when preparing photos for an upload portal.
JPG and JPEG: do you need to convert?
Learn when a filename extension change is enough and when real conversion is needed.
Convert PNG to JPG with a white background
Prepare an opaque JPEG when an upload portal does not accept PNG.
Convert a WebP image for an application upload
Make a JPEG or PNG copy when a portal does not accept WebP.
Why PNG may not reach a small KB target
Understand the PNG limitation before switching formats or dimensions.
Why a file shown as 50 KB may exceed a 50 KB limit
Check exact output bytes when different programs round file sizes differently.
Photos, signatures & scans
Prepare a signature from a phone photo
Turn a clear photograph of your own signature into an upload attachment.
Trim empty space around a signature without clipping it
Remove excess paper while keeping the full handwritten signature visible.
Fix a signature that becomes faint after processing
Find out whether compression, cleanup or the original photo caused the problem.
Check an application photo background before resizing
Separate background requirements from the tools used to prepare file size.
When to avoid AI enhancement on application files
Keep identity photos, signatures and certificates faithful to their originals.
Adjust photo brightness and contrast without washing it out
Make restrained changes and compare the result before downloading.
Sharpening and AI enlargement do different jobs
Choose a modest edge adjustment or optional enlargement based on the source.
Take a phone photo of a document that is easier to process
Improve lighting, alignment and framing before creating the PDF.
Straighten a sideways or slanted document image
Use rotation for tilted text and understand when a new photograph is needed.
Clean a light paper background without losing faint text
Use paper cleanup selectively on photographed documents.
Should an application document be colour or grayscale?
Check what colour communicates before reducing a document to black and white.
PDF creation & layouts
Combine document photos into one PDF in the right order
Create a multi-page PDF where each source image gets its own page.
Put two images on one PDF page
Arrange a pair of images side by side or one above the other.
Arrange three images on a single sheet
Use a three-image layout without creating a three-page PDF.
Make an A4 page with four images
Build a 2 × 2 image layout and check the result before printing or uploading.
Should a combined image sheet be JPG, PNG or PDF?
Choose the output type based on how the finished sheet will be used.
Choose PDF margins and page orientation for document photos
Keep pages readable without excessive white space or clipped edges.
PDF editing & conversion
Save a selected PDF page as a JPG image
Extract the page you need without converting an entire document.
Convert several PDF pages into separate image files
Select ranges and download the resulting page images together.
Choose a PDF-to-image resolution that keeps text readable
Avoid creating unnecessarily large images while preserving small print.
Prepare a PDF below an upload size limit
Enter a maximum KB or MB value and check readability after processing.
Why compressing a signed PDF can invalidate its signature
Preserve the original when a digital signature must remain verifiable.
Increase a PDF to a minimum file size
Use minimum-size padding when the portal specifies a lower byte limit.
Why a long PDF may not fit a very small target
Choose a realistic next step when many pages compete for a small byte budget.
Merge PDF documents in a deliberate reading order
Combine complete PDF files before applying any final upload-size limit.
Extract only the PDF pages your application asks for
Create a smaller document by selecting required pages rather than deleting blindly.
Split a PDF into individual page files
Save selected pages as separate PDFs for separate upload fields.
Reorder PDF pages using page numbers
Move the required pages into a new sequence without uploading them individually.
Rotate selected PDF pages into a readable orientation
Correct sideways pages while checking the output selection and order.
How to enter PDF page ranges and custom selections
Use commas and ranges to choose exactly which pages appear in the output.
Create an unlocked PDF copy using a password you know
Understand the authorized password workflow and its image-based output.
What to do when a large file is slow on your phone
Reduce processing load while keeping the original documents safe.
Application uploads
Rename an attachment without accidentally changing its format
Give files clear names while preserving the type the portal accepts.
Prepare a photo, signature and documents in one session
Give each attachment its own requirements and download the completed set.
Use the ZIP download without uploading the wrong file
Keep multiple prepared attachments together, then upload the individual files required.
Why an upload can fail even when the KB size is correct
Check format, dimensions and document rules after a size-only validation passes.
Find and check your prepared attachments after downloading
Avoid uploading an older file with a similar name.
What local browser processing means for your files
Understand the difference between processing documents and loading website assets.
A final attachment checklist before submitting a form
Review the downloaded files, then confirm the official portal accepted them.