ruby on rails - Inconsistent display of checkboxes on PDF form filled with PDFtk -

i filling pdf forms in rails app pdf-forms (https://github.com/jkraemer/pdf-forms) gem, based on pdftk. text fields work expect, checkbox fields not. boxes display in chrome, in preview , mail checkbox fields appear empty.

class formscontroller < applicationcontroller require 'pdf_forms' def acord25   @policy = policy.find(params[:id])   pdftk = pdfforms.new('/usr/local/bin/pdftk')   # find out field names present in form.pdf   pdftk.get_field_names 'lib/pdfs/acord25.pdf'    # take form.pdf, set 'foo' field 'bar' , save document myform.pdf   pdftk.fill_form '/lib/pdfs/acord25.pdf', "acord25.pdf",       "f[0].p1[0].form_completiondate_a[0]" => @policy.dateissued,      "f[0].p1[0].producer_fullname_a[0]" => @policy.client.broker.name,      "f[0].p1[0].producer_mailingaddress_lineone_a[0]" => @policy.client.broker.company,      "f[0].p1[0].producer_mailingaddress_linetwo_a[0]" => @policy.client.broker.address,      "f[0].p1[0].producer_contactperson_fullname_a[0]" => @policy.legalvesting,      "f[0].p1[0].producer_contactperson_phonenumber_a[0]" => @policy.client.broker.phone,      "f[0].p1[0].producer_faxnumber_a[0]" => @policy.client.broker.fax,      "f[0].p1[0].producer_contactperson_emailaddress_a[0]" => @policy.client.broker.email,      "f[0].p1[0].namedinsured_fullname_a[0]" => @policy.client.name,      "f[0].p1[0].namedinsured_mailingaddress_lineone_a[0]" => @policy.client.address.titlecase,      "f[0].p1[0].generalliability_coverageindicator_a[0]" => 1,      "f[0].p1[0].generalliability_occurrenceindicator_a[0]" => 1,      "f[0].p1[0].generalliability_generalaggregate_limitappliesperlocationindicator_a[0]" => 1,      "f[0].p1[0].policy_policynumberidentifier_a[0]" => @policy.policynumber,      "f[0].p1[0].policy_effectivedate_a[0]" => @policy.dateeffective,      "f[0].p1[0].policyexpirationgeneral[0]" => @policy.term.dayend,      "f[0].p1[0].insurer_fullname_a[0]" => "lexington insurance company",      "f[0].p1[0].insurer_naiccode_a[0]" => 19437,      "f[0].p1[0].insurer_fullname_b[0]" => "commerce & industry insurance company",      "f[0].p1[0].insurer_naiccode_b[0]" => 19410,      "f[0].p1[0].insurer_fullname_c[0]" => "great american insurance company",      "f[0].p1[0].insurer_naiccode_c[0]" => 37532,      "f[0].p1[0].insurer_fullname_d[0]" => "admiral insurance company",      "f[0].p1[0].insurer_naiccode_d[0]" => 24856,      "f[0].p1[0].generalliability_insurerlettercode_a[0]" => "a",      "f[0].p1[0].generalliability_eachoccurrence_limitamount_a[0]" => 1000000,      "f[0].p1[0].generalliability_firedamagerentedpremises_eachoccurrencelimitamount_a[0]" => 50000,      "f[0].p1[0].generalliability_medicalexpense_eachpersonlimitamount_a[0]" => "excluded",      "f[0].p1[0].generalliability_personalandadvertisinginjury_limitamount_a[0]" => 1000000,      "f[0].p1[0].generalliability_generalaggregate_limitamount_a[0]" => 2000000,      "f[0].p1[0].generalliability_productsandcompletedoperations_aggregatelimitamount_a[0]" => 2000000,      "f[0].p1[0].vehicle_insurerlettercode_a[0]" => "a",      "f[0].p1[0].vehicle_hiredautosindicator_a[0]" => 1,      "f[0].p1[0].vehicle_nonownedautosindicator_a[0]" => 1,      "f[0].p1[0].policy_policynumberidentifier_b[0]" => @policy.policynumber,      "f[0].p1[0].policy_effectivedate_b[0]" => @policy.dateeffective,      "f[0].p1[0].policy_expirationdate_b[0]" => @policy.term.dayend,      "f[0].p1[0].vehicle_combinedsinglelimit_eachaccidentamount_a[0]" => 1000000,      "f[0].p1[0].excessumbrella_insurerlettercode_a[0]" => "b",      "f[0].p1[0].excessumbrella_occurrenceindicator_a[0]" => 1,      "f[0].p1[0].excessumbrella_deductibleindicator_a[0]" => 1,      "f[0].p1[0].excessumbrella_umbrella_deductibleorretentionamount_a[0]" => @policy.coverages.first.deductibleocc,      "f[0].p1[0].policy_policynumberidentifier_d[0]" => @policy.policynumber,      "f[0].p1[0].policy_effectivedate_d[0]" => @policy.dateeffective,      "f[0].p1[0].policy_expirationdate_d[0]" => @policy.term.dayend,      "f[0].p1[0].excessumbrella_umbrella_eachoccurrenceamount_a[0]" => 10000000,      "f[0].p1[0].excessumbrella_umbrella_aggregateamount_a[0]" => 10000000       send_file("#{rails.root}/acord25.pdf", filename: "#{@policy.client.name} - #{@policy.carrier.name} - #{@policy.policynumber} (#{time.now}).pdf", type: "application/vnd.ms-excel") end end 

tl;dr: checked boxes display in chrome, not in preview or mail.

i appreciate or leads on problem might be. thank you!

turns out pdf form corrupted. had recreate form, not pdftk issue.